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【结 构 式】

【药物名称】Phomoidride A, CP-225917

【化学名称】(+)-2-[11-Hydroxy-5-[2-hydroxy-3-oxo-6(E)-octenyl]-6-[6(E)-octenyl]-1,3,13-trioxo-3,4,5,6,9,10-hexahydro-1H-11,9-(epoxymethano)-4,8-methanocyclonona[c]furan-9-yl]acetic acid

【CA登记号】

【 分 子 式 】C31H38O10

【 分 子 量 】570.64251

【开发单位】Pfizer (Originator)

【药理作用】Antifungal Agents, ANTIINFECTIVE THERAPY, Farnesyl Transferase Inhibitors, Squalene Synthase Inhibitors

合成路线1

The reaction of dimethyl malonate (I) with 3-(tert-butyldimethylsilyloxy)propyl iodide (II) by means of NaH in THF gives the alkylmalonate (III), which by a new alkylation with allyl bromide (IV) and NaH in DME affords the dialkylmalonate (V). The reduction of (V) with LiBH4 in THF yields the 1,3-propanediol (VI), which is cyclized with 2,2-dimethoxypropane and CSA in dichloromethane giving the 1,3-dioxane (VII). The ozonolysis of the double bond of (VII) with O3 in dichloromethane yields the aldehyde (VIII), which is protected by heating with cyclohexylamine (IX) to afford the imine (X).The condensation of (X) with 8(E)-decenal (XI) by means of LDA in ethyl ether gives the unsaturated aldehyde (XII), which is treated with Pmb-Cl and KH in DME/HMPA to yield the enol ether (XIII). The desilylation of (XIII) with TBAF in THF gives the propanol derivative (XIV), which is oxidized with SO3/pyridine to the corresponding aldehyde (XV). The condensation of (XV) with 4-(triisopropylsilyloxy)-1(E)-butenyl iodide (XVI) by means of BuLi in THF, followed by oxidation of the intermediate alcohol with SO3/pyridine provides the unsaturated ketone (XVII).

1 Nicolaou, K.C.; et al.; Total synthesis of the CP molecules CP-263,114 and CP-225,917 - Part 1: Synthesis of key intermediates and intelligence gathering. Angew Chem. Int Ed Engl 1999, 38, 11, 1669.
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(A) 10722 1-Methoxy-1-methylethyl methyl ether; 2,2-Dimethoxypropane 77-76-9 C5H12O2 详情 详情
(I) 19373 dimethyl malonate;Methyl malonate;Propanedioic acid dimethyl ester 108-59-8 C5H8O4 详情 详情
(II) 35676 tert-butyl(3-iodopropoxy)dimethylsilane; tert-butyl(dimethyl)silyl 3-iodopropyl ether C9H21IOSi 详情 详情
(III) 35677 dimethyl 2-(3-[[tert-butyl(dimethyl)silyl]oxy]propyl)malonate C14H28O5Si 详情 详情
(IV) 11463 3-Bromo-1-propene; 3-Bromopropene;allyl bromide 106-95-6 C3H5Br 详情 详情
(V) 35678 dimethyl 2-allyl-2-(3-[[tert-butyl(dimethyl)silyl]oxy]propyl)malonate C17H32O5Si 详情 详情
(VI) 35679 2-allyl-2-(3-[[tert-butyl(dimethyl)silyl]oxy]propyl)-1,3-propanediol C15H32O3Si 详情 详情
(VII) 35680 3-(5-allyl-2,2-dimethyl-1,3-dioxan-5-yl)propyl tert-butyl(dimethyl)silyl ether; [3-(5-allyl-2,2-dimethyl-1,3-dioxan-5-yl)propoxy](tert-butyl)dimethylsilane C18H36O3Si 详情 详情
(VIII) 35681 2-[5-(3-[[tert-butyl(dimethyl)silyl]oxy]propyl)-2,2-dimethyl-1,3-dioxan-5-yl]acetaldehyde C17H34O4Si 详情 详情
(IX) 17966 cyclohexanamine; cyclohexyl amine; cyclohexylamine 108-91-8 C6H13N 详情 详情
(X) 35682 N-[(E)-2-[5-(3-[[tert-butyl(dimethyl)silyl]oxy]propyl)-2,2-dimethyl-1,3-dioxan-5-yl]ethylidene]-N-cyclohexylamine; N-[(E)-2-[5-(3-[[tert-butyl(dimethyl)silyl]oxy]propyl)-2,2-dimethyl-1,3-dioxan-5-yl]ethylidene]cyclohexanamine C23H45NO3Si 详情 详情
(XI) 35683 (E)-8-decenal C10H18O 详情 详情
(XII) 35684 (2Z,10E)-2-[5-(3-[[tert-butyl(dimethyl)silyl]oxy]propyl)-2,2-dimethyl-1,3-dioxan-5-yl]-2,10-dodecadienal C27H50O4Si 详情 详情
(XIII) 35685 tert-butyl[3-(5-[(2E,9E)-1-[(E)-2-(4-methoxyphenyl)ethylidene]-2,9-undecadienyl]-2,2-dimethyl-1,3-dioxan-5-yl)propoxy]dimethylsilane; tert-butyl(dimethyl)silyl 3-(5-[(2E,9E)-1-[(E)-2-(4-methoxyphenyl)ethylidene]-2,9-undecadienyl]-2,2-dimethyl-1,3-dioxan-5-yl)propyl ether C35H58O4Si 详情 详情
(XIV) 35686 3-(5-[(2E,9E)-1-[(E)-2-(4-methoxyphenyl)ethylidene]-2,9-undecadienyl]-2,2-dimethyl-1,3-dioxan-5-yl)-1-propanol C29H44O4 详情 详情
(XV) 35687 3-(5-[(2E,9E)-1-[(E)-2-(4-methoxyphenyl)ethylidene]-2,9-undecadienyl]-2,2-dimethyl-1,3-dioxan-5-yl)propanal C29H42O4 详情 详情
(XVI) 35688 (E)-4-iodo-3-butenyl triisopropylsilyl ether; [[(E)-4-iodo-3-butenyl]oxy](triisopropyl)silane C13H27IOSi 详情 详情
(XVII) 35689 (E)-1-(5-[(2E,9E)-1-[(E)-2-(4-methoxyphenyl)ethylidene]-2,9-undecadienyl]-2,2-dimethyl-1,3-dioxan-5-yl)-7-[(triisopropylsilyl)oxy]-4-hepten-3-one C42H68O5Si 详情 详情

合成路线2

The cyclization of (XVII) by means of Me2AlCl in dichloromethane gives the tricyclic ketone (XVIII), which is desilylated with TBAF in THF yielding the ethanol (XIX). The oxidation of (XIX) with Dess Martin periodinane (DMP) in dichloromethane affords the corresponding aldehyde (XX), which is condensed with the lithium 1,3-dithiane (XXI) in THF to give the secondary alcohol (XXII). The silylation of this alcohol with Tes-OTf and NaH in THF yields the silyl ether (XXIII), which is treated with Ph-NTf2 and KHMDS in THF to afford the enol ether (XXIV). The reaction of (XXIV) with Pdo and CO in methanol gives the methyl ester (XXV), which is treated with PhI(OCOCF3)2 and methanol to afford the gem-dimethoxy compound (XXVI).

1 Nicolaou, K.C.; et al.; Total synthesis of the CP molecules CP-263,114 and CP-225,917 - Part 1: Synthesis of key intermediates and intelligence gathering. Angew Chem. Int Ed Engl 1999, 38, 11, 1669.
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(XVII) 35689 (E)-1-(5-[(2E,9E)-1-[(E)-2-(4-methoxyphenyl)ethylidene]-2,9-undecadienyl]-2,2-dimethyl-1,3-dioxan-5-yl)-7-[(triisopropylsilyl)oxy]-4-hepten-3-one C42H68O5Si 详情 详情
(XVIII) 35690   C42H68O5Si 详情 详情
(XIX) 35691   C33H48O5 详情 详情
(XX) 35692   C33H46O5 详情 详情
(XXI) 35693 [2-[(E)-3-pentenyl]-1,3-dithian-2-yl]lithium C9H15LiS2 详情 详情
(XXII) 35694   C42H62O5S2 详情 详情
(XXIII) 35695   C48H76O5S2Si 详情 详情
(XXIV) 35696   C49H75F3O7S3Si 详情 详情
(XXV) 35697   C50H78O6S2Si 详情 详情
(XXVI) 35698   C49H78O8Si 详情 详情

合成路线3

The reduction of the ester group of (XXVI) with DIBAL in toluene gives the carbinol (XXVII), which is treated with tert-butyl hydroperoxide and Et2Al-CN in toluene to yield the dihydroxy-carbonitrile (XXVIII). The sulfonation of the primary OH group of (XXVIII) with Ms-Cl affords the mesylate (XXIX), which is treated with K2CO3 in methanol providing the intermediate epoxide (XXX). The reaction of (XXX) with oxalic acid in ethanol/water affords the maleic anhydride derivative (XXXI), which by a selective hydrolysis with aqueous AcOH gives the alpha hydroxy ketone (XXXII). The silylation of the OH group of (XXXII) with TBDMS-OTf and lutidine in dichloromethane yields the silyl ether (XXXIII).

1 Nicolaou, K.C.; et al.; Total synthesis of the CP molecules CP-263,114 and CP-225,917 - Part 1: Synthesis of key intermediates and intelligence gathering. Angew Chem. Int Ed Engl 1999, 38, 11, 1669.
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(XXVI) 35698   C49H78O8Si 详情 详情
(XXVII) 35699   C48H78O7Si 详情 详情
(XXVIII) 35700   C49H79NO8Si 详情 详情
(XXIX) 35701   C52H85NO8SSi 详情 详情
(XXX) 35702   C49H77NO7Si 详情 详情
(XXXI) 35703   C49H74O9Si 详情 详情
(XXXII) 35704   C41H54O8 详情 详情
(XXXIII) 35705   C47H68O8Si 详情 详情

合成路线4

The cleavage of the 4-methoxybenzyl group of (XXXIII) with DDQ in dichloromethane/water gives the secondary alcohol (XXXIV), which is oxidized with pyridinium dichromate (PDC) in dichloromethane yielding the corresponding ketone (XXXV). The cyclization of (XXXV) with AcOH affords the tetracyclic compound (XXXVI), which is silylated at the carbinol group with Tes-OTf and lutidine giving the silyl ether (XXXVII). The oxidation of (XXXVII) with DMP in refluxing benzene affords the carbinol (XXXVIII), which is selectively desilylated and cyclized with TFA in dichloromethane/water giving the pentacyclic compound (XXXIX). The oxidation of the hydroxymethyl group of (XXXIX) with DMP in dichloromethane yields corresponding aldehyde (XL), which is silylated at the remaining OH group with Tbdms-OTf and lutidine in dichloromethane to afford the silyl ether (XLI). The oxidation of the aldehyde group of (XLI) with NaClO2 in tert-butanol/water gives the carboxylic acid (XLII).

1 Nicolaou, K.C.; et al.; Total synthesis of the CP molecules CP-225,917 and CP-263,114 - Part 2: Evolution of the final strategy. Angew Chem. Int Ed Engl 1999, 38, 11, 1677.
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(XXXIII) 35705   C47H68O8Si 详情 详情
(XXXIV) 35706   C39H60O8Si 详情 详情
(XXXV) 35707   C39H58O8Si 详情 详情
(XXXVI) 35708   C36H54O8Si 详情 详情
(XXXVII) 35709   C42H68O8Si2 详情 详情
(XXXVIII) 35710   C42H68O9Si2 详情 详情
(XXXIX) 35711   C30H38O8 详情 详情
(XL) 35712   C30H36O8 详情 详情
(XLI) 35713   C36H50O8Si 详情 详情
(XLII) 35714   C36H50O9Si 详情 详情

合成路线5

The reaction of (XLII) with methanesulfonyl chloride and Et3N in THF gives the mixed anhydride (XLIII), which is treated with diazomethane in ethyl ether/THF to yield the diazoketone (XLIV). The rearrangement of (XLIV) with Ag2O in DMF/water affords the acetic acid derivative (XLV), which is condensed with indoline (XLVI) by means of EDC and DMAP in dichloromethane to provide the acyl indoline (XLVII). The desilylation of (XLVII) with TFA/water in dichloromethane gives the secondary alcohol (XLVIII), which is oxidized with DMP in dichloromethane to yield the corresponding ketonic compound (XLIX). The dehydrogenation of the indoline group of (XLIX) with chloranil in refluxing toluene affords the corresponding indole derivative (L).

1 Nicolaou, K.C.; et al.; Total synthesis of the CP molecules CP-225,917 and CP-263,114 - Part 2: Evolution of the final strategy. Angew Chem. Int Ed Engl 1999, 38, 11, 1677.
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(XLII) 35714   C36H50O9Si 详情 详情
(XLIII) 35715   C39H56O9SSi 详情 详情
(XLIV) 35716   C37H50N2O8Si 详情 详情
(XLV) 35717   C37H52O9Si 详情 详情
(XLVI) 19652 indoline 496-15-1 C8H9N 详情 详情
(XLVII) 35718 (9S,12S,13S,15R,18R)-18-[[tert-butyl(dimethyl)silyl]oxy]-9-[2-(2,3-dihydro-1H-indol-1-yl)-2-oxoethyl]-15-[(E)-4-hexenoyl]-12-[(E)-6-octenyl]-5,16,17-trioxapentacyclo[7.7.2.0(1,10).0(2,13).0(3,7)]octadeca-3(7),10-diene-4,6-dione C45H59NO8Si 详情 详情
(XLVIII) 35719 (9S,12S,13S,15R,18S)-9-[2-(2,3-dihydro-1H-indol-1-yl)-2-oxoethyl]-15-[(E)-4-hexenoyl]-18-hydroxy-12-[(E)-6-octenyl]-5,16,17-trioxapentacyclo[7.7.2.0(1,10).0(2,13).0(3,7)]octadeca-3(7),10-diene-4,6-dione C39H45NO8 详情 详情
(XLIX) 35720 (9S,12S,13S,15R)-9-[2-(2,3-dihydro-1H-indol-1-yl)-2-oxoethyl]-15-[(E)-4-hexenoyl]-12-[(E)-6-octenyl]-5,16,17-trioxapentacyclo[7.7.2.0(1,10).0(2,13).0(3,7)]octadeca-3(7),10-diene-4,6,18-trione C39H43NO8 详情 详情
(L) 35721 (9S,12S,13S,15R)-15-[(E)-4-hexenoyl]-9-[2-(1H-indol-1-yl)-2-oxoethyl]-12-[(E)-6-octenyl]-5,16,17-trioxapentacyclo[7.7.2.0(1,10).0(2,13).0(3,7)]octadeca-3(7),10-diene-4,6,18-trione C39H41NO8 详情 详情

合成路线6

Finally, compound (L) is treated with LiOH and NaH2PO4 in THF/water to provide the target compound.

1 Nicolaou, K.C.; et al.; Total synthesis of the CP molecules CP-225,917 and CP-263,114 - Part 2: Evolution of the final strategy. Angew Chem. Int Ed Engl 1999, 38, 11, 1677.
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(L) 35721 (9S,12S,13S,15R)-15-[(E)-4-hexenoyl]-9-[2-(1H-indol-1-yl)-2-oxoethyl]-12-[(E)-6-octenyl]-5,16,17-trioxapentacyclo[7.7.2.0(1,10).0(2,13).0(3,7)]octadeca-3(7),10-diene-4,6,18-trione C39H41NO8 详情 详情

合成路线7

The intermediate aldehyde (XV) has been obtained as follows: The reaction of dimethyl malonate (I) with 3-(tert-butyldimethylsilyloxy)propyl iodide (II) by means of NaH in THF gives the alkylmalonate (III), which by a new alkylation with allyl bromide (IV) and NaH in DME affords the dialkylmalonate (V). The reduction of (V) with LiBH4 in THF yields the 1,3-propanediol (VI), which is cyclized with 2,2-dimethoxypropane and CSA in dichloromethane giving the 1,3-dioxane (VII). The ozonolysis of the double bond of (VII) with O3 in dichloromethane yields the aldehyde (VIII), which is protected by heating with cyclohexylamine (IX) to afford the imine (X). The condensation of (X) with 8(E)-decenal (XI) by means of LDA in ethyl ether gives the unsaturated aldehyde (XII), which is treated with PmbCl and KH in DME/HMPA to yield the enol ether (XIII). The desilylation of (XIII) with TBAF in THF gives the propanol derivative (XIV), which is oxidized with SO3.Pyr to the corresponding aldehyde (XV).

1 Nicolaou, K.C.; et al.; Total synthesis of the CP molecules CP-263,114 and CP-225,917 - Part 1: Synthesis of key intermediates and intelligence gathering. Angew Chem. Int Ed Engl 1999, 38, 11, 1669.
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(I) 19373 dimethyl malonate;Methyl malonate;Propanedioic acid dimethyl ester 108-59-8 C5H8O4 详情 详情
(II) 35676 tert-butyl(3-iodopropoxy)dimethylsilane; tert-butyl(dimethyl)silyl 3-iodopropyl ether C9H21IOSi 详情 详情
(III) 35677 dimethyl 2-(3-[[tert-butyl(dimethyl)silyl]oxy]propyl)malonate C14H28O5Si 详情 详情
(IV) 11463 3-Bromo-1-propene; 3-Bromopropene;allyl bromide 106-95-6 C3H5Br 详情 详情
(V) 35678 dimethyl 2-allyl-2-(3-[[tert-butyl(dimethyl)silyl]oxy]propyl)malonate C17H32O5Si 详情 详情
(VI) 35679 2-allyl-2-(3-[[tert-butyl(dimethyl)silyl]oxy]propyl)-1,3-propanediol C15H32O3Si 详情 详情
(VII) 35680 3-(5-allyl-2,2-dimethyl-1,3-dioxan-5-yl)propyl tert-butyl(dimethyl)silyl ether; [3-(5-allyl-2,2-dimethyl-1,3-dioxan-5-yl)propoxy](tert-butyl)dimethylsilane C18H36O3Si 详情 详情
(VIII) 35681 2-[5-(3-[[tert-butyl(dimethyl)silyl]oxy]propyl)-2,2-dimethyl-1,3-dioxan-5-yl]acetaldehyde C17H34O4Si 详情 详情
(IX) 17966 cyclohexanamine; cyclohexyl amine; cyclohexylamine 108-91-8 C6H13N 详情 详情
(X) 35682 N-[(E)-2-[5-(3-[[tert-butyl(dimethyl)silyl]oxy]propyl)-2,2-dimethyl-1,3-dioxan-5-yl]ethylidene]-N-cyclohexylamine; N-[(E)-2-[5-(3-[[tert-butyl(dimethyl)silyl]oxy]propyl)-2,2-dimethyl-1,3-dioxan-5-yl]ethylidene]cyclohexanamine C23H45NO3Si 详情 详情
(XI) 35683 (E)-8-decenal C10H18O 详情 详情
(XII) 35684 (2Z,10E)-2-[5-(3-[[tert-butyl(dimethyl)silyl]oxy]propyl)-2,2-dimethyl-1,3-dioxan-5-yl]-2,10-dodecadienal C27H50O4Si 详情 详情
(XIII) 35685 tert-butyl[3-(5-[(2E,9E)-1-[(E)-2-(4-methoxyphenyl)ethylidene]-2,9-undecadienyl]-2,2-dimethyl-1,3-dioxan-5-yl)propoxy]dimethylsilane; tert-butyl(dimethyl)silyl 3-(5-[(2E,9E)-1-[(E)-2-(4-methoxyphenyl)ethylidene]-2,9-undecadienyl]-2,2-dimethyl-1,3-dioxan-5-yl)propyl ether C35H58O4Si 详情 详情
(XIV) 35686 3-(5-[(2E,9E)-1-[(E)-2-(4-methoxyphenyl)ethylidene]-2,9-undecadienyl]-2,2-dimethyl-1,3-dioxan-5-yl)-1-propanol C29H44O4 详情 详情
(XV) 35687 3-(5-[(2E,9E)-1-[(E)-2-(4-methoxyphenyl)ethylidene]-2,9-undecadienyl]-2,2-dimethyl-1,3-dioxan-5-yl)propanal C29H42O4 详情 详情

合成路线8

The condensation of (S)-glycidol (XVI) with trimethylsilylacetylene (XVII) by means of tert-butyllithium in THF, followed by quenching with TBDMS triflate gives the protected acetylenic diol (XVIII), which is iodinated with K2CO3, Cp2ZnCl and I2 yielding the vinyl iodide (XIX). The condensation of (XIX) with the intermediate aldehyde (XV) in THF, followed by oxidation with DMP affords the chiral ketone (XX), which is submitted to a diastereoselective cyclization catalyzed by dichloroaluminum phenoxide (XXI) in toluene to furnish the polycyclic ketone (XXII) as a 5.7:1 diastereomeric mixture. The desilylation of this mixture with TBAF in THF allowed the separation of the mayor diastereomeric diol (XXIII) by flash chromatography. The oxidation of (XXIII) with NaIO4 affords the corresponding aldehyde (XXIV), which is condensed with the lithium 1,3-dithiane (XXV) in THF to give the secondary alcohol (XXVI). The silylation of this alcohol with TES-OTf and NaH in THF yields the silyl ether (XXVII), which is treated with Ph-NTf2 and KHMDS in THF to afford the enol ether (XXVIII).

1 Nicolaou, K.C.; et al.; Total synthesis of the CP molecules CP-263,114 and CP-225,917 - Part 1: Synthesis of key intermediates and intelligence gathering. Angew Chem. Int Ed Engl 1999, 38, 11, 1669.
2 Nicolaou, K.C.; et al.; The absolute configuration and asymmetric total synthesis of the CP molecules (CP-263,114 and CP-225,917, Phomoidrides B and A). Angew Chem. Int Ed Engl 2000, 39, 10, 1829.
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(XV) 35687 3-(5-[(2E,9E)-1-[(E)-2-(4-methoxyphenyl)ethylidene]-2,9-undecadienyl]-2,2-dimethyl-1,3-dioxan-5-yl)propanal C29H42O4 详情 详情
(XVI) 19241 (2S)oxiranylmethanol 60456-23-7 C3H6O2 详情 详情
(XVII) 23897 ethynyl(trimethyl)silane;trimethylsilyl acetylene 1066-54-2 C5H10Si 详情 详情
(XVIII) 40293 tert-butyl(dimethyl)silyl (1R)-1-([[tert-butyl(dimethyl)silyl]oxy]methyl)-4-(trimethylsilyl)-3-butynyl ether; (5R)-2,2,3,3,8,8,9,9-octamethyl-5-[3-(trimethylsilyl)-2-propynyl]-4,7-dioxa-3,8-disiladecane C20H44O2Si3 详情 详情
(XIX) 40294 tert-butyl(dimethyl)silyl (2R,4E)-2-[[tert-butyl(dimethyl)silyl]oxy]-5-iodo-4-pentenyl ether; (5R)-5-[(E)-3-iodo-2-propenyl]-2,2,3,3,8,8,9,9-octamethyl-4,7-dioxa-3,8-disiladecane C17H37IO2Si2 详情 详情
(XX) 40295 (E,7R)-7,8-bis[[tert-butyl(dimethyl)silyl]oxy]-1-(5-[(2E,9E)-1-[(E)-2-(4-methoxyphenyl)ethylidene]-2,9-undecadienyl]-2,2-dimethyl-1,3-dioxan-5-yl)-4-octen-3-one C46H78O6Si2 详情 详情
(XXI) 40296   C15H23AlCl2O 详情 详情
(XXII) 40297   C46H78O6Si2 详情 详情
(XXIII) 40298   C34H50O6 详情 详情
(XXIV) 35692   C33H46O5 详情 详情
(XXV) 35693 [2-[(E)-3-pentenyl]-1,3-dithian-2-yl]lithium C9H15LiS2 详情 详情
(XXVI) 35694   C42H62O5S2 详情 详情
(XXVII) 35695   C48H76O5S2Si 详情 详情
(XXVIII) 35696   C49H75F3O7S3Si 详情 详情

合成路线9

The reaction of (XXVIII) with Pd and CO in MeOH gives the methyl ester (XXIX), which is treated with PhI(OCOCF3)2 and MeOH to afford the gem-dimethoxy compound (XXX). The reduction of the ester group of (XXX) with DIBAL in toluene gives the carbinol (XXXI), which is treated with tert-butyl hydroperoxide and Et2Al-CN in toluene to yield the dihydroxycarbonitrile (XXXII). The sulfonation of the primary OH group of (XXXII) with MsCl affords the mesylate (XXXIII), which is treated with K2CO3 in MeOH providing the intermediate epoxide (XXXIV). The reaction of (XXXIV) with oxalic acid in EtOH/H2O affords the maleic anhydride derivative (XXXV).

1 Nicolaou, K.C.; et al.; Total synthesis of the CP molecules CP-263,114 and CP-225,917 - Part 1: Synthesis of key intermediates and intelligence gathering. Angew Chem. Int Ed Engl 1999, 38, 11, 1669.
2 Nicolaou, K.C.; et al.; The absolute configuration and asymmetric total synthesis of the CP molecules (CP-263,114 and CP-225,917, Phomoidrides B and A). Angew Chem. Int Ed Engl 2000, 39, 10, 1829.
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
15713 Oxalic acid 144-62-7 C2H2O4 详情 详情
(XXVIII) 35696   C49H75F3O7S3Si 详情 详情
(XXIX) 35697   C50H78O6S2Si 详情 详情
(XXX) 35698   C49H78O8Si 详情 详情
(XXXI) 35699   C48H78O7Si 详情 详情
(XXXII) 35700   C49H79NO8Si 详情 详情
(XXXIII) 40299   C51H83NO8SSi 详情 详情
(XXXIV) 35702   C49H77NO7Si 详情 详情
(XXXV) 35703   C49H74O9Si 详情 详情

合成路线10

The selective hydrolysis of (XXXV) with aqueous AcOH gives the alpha hydroxy ketone (XXXVI), which is silylated at the OH group with TBDMS-OTf and lutidine in dichloromethane yielding the silyl ether (XXXVII). The cleavage of the 4-methoxybenzyl group of (XXXVII) with DDQ in CH2Cl2/H2O gives the secondary alcohol (XXXVIII), which is oxidized with pyridinium dichromate (PDC) in dichloromethane yielding the corresponding ketone (XXXIX). The cyclization of (XXXIX) with AcOH affords the tetracyclic compound (XL), which is silylated at the carbinol group with TES-OTf and lutidine giving the silyl ether (XLI). The oxidation of (XLI) with DMP in refluxing benzene affords the carbinol (XLII), which is selectively desilylated and cyclized with TFA in CH2Cl2/H2O giving the pentacyclic compound (XLIII). The oxidation of the hydroxymethyl group of (XLIII) with DMP in CH2Cl2 yields corresponding aldehyde (XLIV).

1 Nicolaou, K.C.; et al.; Total synthesis of the CP molecules CP-263,114 and CP-225,917 - Part 1: Synthesis of key intermediates and intelligence gathering. Angew Chem. Int Ed Engl 1999, 38, 11, 1669.
2 Nicolaou, K.C.; et al.; Total synthesis of the CP molecules CP-225,917 and CP-263,114 - Part 2: Evolution of the final strategy. Angew Chem. Int Ed Engl 1999, 38, 11, 1677.
3 Nicolaou, K.C.; et al.; The absolute configuration and asymmetric total synthesis of the CP molecules (CP-263,114 and CP-225,917, Phomoidrides B and A). Angew Chem. Int Ed Engl 2000, 39, 10, 1829.
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(XXXV) 35703   C49H74O9Si 详情 详情
(XXXVI) 35704   C41H54O8 详情 详情
(XXXVII) 35705   C47H68O8Si 详情 详情
(XXXVIII) 35706   C39H60O8Si 详情 详情
(XXXIX) 35707   C39H58O8Si 详情 详情
(XL) 40300 (8S,14R,15R)-15-((2S,6E)-2-[[tert-butyl(dimethyl)silyl]oxy]-3-oxo-6-octenyl)-11-hydroxy-8-(hydroxymethyl)-14-[(E)-6-octenyl]-4,10-dioxatetracyclo[9.4.0.0(2,6).0(8,12)]pentadeca-2(6),12-diene-3,5-dione C36H54O8Si 详情 详情
(XLI) 40301 (8R,14R,15R)-15-((2S,6E)-2-[[tert-butyl(dimethyl)silyl]oxy]-3-oxo-6-octenyl)-11-hydroxy-14-[(E)-6-octenyl]-8-[[(triethylsilyl)oxy]methyl]-4,10-dioxatetracyclo[9.4.0.0(2,6).0(8,12)]pentadeca-2(6),12-diene-3,5-dione C42H68O8Si2 详情 详情
(XLII) 35710   C42H68O9Si2 详情 详情
(XLIII) 35711   C30H38O8 详情 详情
(XLIV) 35712   C30H36O8 详情 详情

合成路线11

The silylation at the remaining OH group of (XLIV) with TBDMS-OTf and lutidine in dichloromethane affords the silyl ether (XLV), which is oxidized at the aldehyde group with NaClO2 in tert-butanol/water giving the carboxylic acid (XLVI). The reaction of (XLVI) with methanesulfonyl chloride and Et3N in THF gives the mixed anhydride (XLVII), which is treated with diazomethane in ethyl ether/THF to yield the diazoketone (XLVIII). The rearrangement of (XLVIII) with Ag2O in DMF/water affords the acetic acid derivative (XLIX), which is condensed with indoline (L) by means of EDC and DMAP in CH2Cl2 to provide the acyl indoline (LI). The desilylation of (LI) with TFA/water in dichloromethane gives the secondary alcohol (LII).

1 Nicolaou, K.C.; et al.; Total synthesis of the CP molecules CP-225,917 and CP-263,114 - Part 2: Evolution of the final strategy. Angew Chem. Int Ed Engl 1999, 38, 11, 1677.
2 Nicolaou, K.C.; et al.; The absolute configuration and asymmetric total synthesis of the CP molecules (CP-263,114 and CP-225,917, Phomoidrides B and A). Angew Chem. Int Ed Engl 2000, 39, 10, 1829.
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(XLIV) 35712   C30H36O8 详情 详情
(XLV) 35713   C36H50O8Si 详情 详情
(XLVI) 35714   C36H50O9Si 详情 详情
(XLVII) 35715   C39H56O9SSi 详情 详情
(XLVIII) 35716   C37H50N2O8Si 详情 详情
(XLIX) 35717   C37H52O9Si 详情 详情
(L) 19652 indoline 496-15-1 C8H9N 详情 详情
(LI) 35718 (9S,12S,13S,15R,18R)-18-[[tert-butyl(dimethyl)silyl]oxy]-9-[2-(2,3-dihydro-1H-indol-1-yl)-2-oxoethyl]-15-[(E)-4-hexenoyl]-12-[(E)-6-octenyl]-5,16,17-trioxapentacyclo[7.7.2.0(1,10).0(2,13).0(3,7)]octadeca-3(7),10-diene-4,6-dione C45H59NO8Si 详情 详情
(LII) 35719 (9S,12S,13S,15R,18S)-9-[2-(2,3-dihydro-1H-indol-1-yl)-2-oxoethyl]-15-[(E)-4-hexenoyl]-18-hydroxy-12-[(E)-6-octenyl]-5,16,17-trioxapentacyclo[7.7.2.0(1,10).0(2,13).0(3,7)]octadeca-3(7),10-diene-4,6-dione C39H45NO8 详情 详情

合成路线12

The oxidation of (LII) with DMP in dichloromethane yields the corresponding ketonic compound (LIII), which is dehydrogenated at the indoline group with chloranil in refluxing toluene affording the corresponding indole derivative (LIV). Finally, compound (LIV) is treated with LiOH and NaH2PO4 in THF/water to provide the target compound.

1 Nicolaou, K.C.; et al.; The absolute configuration and asymmetric total synthesis of the CP molecules (CP-263,114 and CP-225,917, Phomoidrides B and A). Angew Chem. Int Ed Engl 2000, 39, 10, 1829.
2 Nicolaou, K.C.; et al.; Total synthesis of the CP molecules CP-225,917 and CP-263,114 - Part 2: Evolution of the final strategy. Angew Chem. Int Ed Engl 1999, 38, 11, 1677.
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(LII) 35719 (9S,12S,13S,15R,18S)-9-[2-(2,3-dihydro-1H-indol-1-yl)-2-oxoethyl]-15-[(E)-4-hexenoyl]-18-hydroxy-12-[(E)-6-octenyl]-5,16,17-trioxapentacyclo[7.7.2.0(1,10).0(2,13).0(3,7)]octadeca-3(7),10-diene-4,6-dione C39H45NO8 详情 详情
(LIII) 35720 (9S,12S,13S,15R)-9-[2-(2,3-dihydro-1H-indol-1-yl)-2-oxoethyl]-15-[(E)-4-hexenoyl]-12-[(E)-6-octenyl]-5,16,17-trioxapentacyclo[7.7.2.0(1,10).0(2,13).0(3,7)]octadeca-3(7),10-diene-4,6,18-trione C39H43NO8 详情 详情
(LIV) 35721 (9S,12S,13S,15R)-15-[(E)-4-hexenoyl]-9-[2-(1H-indol-1-yl)-2-oxoethyl]-12-[(E)-6-octenyl]-5,16,17-trioxapentacyclo[7.7.2.0(1,10).0(2,13).0(3,7)]octadeca-3(7),10-diene-4,6,18-trione C39H41NO8 详情 详情
Extended Information