【结 构 式】 |
【分子编号】32432 【品名】1-Diazo-2-oxopropylphosphonic acid dimethyl ester 【CA登记号】 |
【 分 子 式 】C5H9N2O4P 【 分 子 量 】192.111302 【元素组成】C 31.26% H 4.72% N 14.58% O 33.31% P 16.12% |
合成路线1
该中间体在本合成路线中的序号:(XX)The hydrogenation of the double bond of (XVIII) with H2 and Lindlar catalyst affords the corresponding saturated aldehyde (XIX), which is condensed with the diazophosphonate (XX) giving the acetylenic derivative (XXI). The bromination of (XXI) with N-bromosuccinimide (NBS) and AgNO3 yields the bromoacetylenic compound (XXII), which is desilylated with HF and TBAF affording the dihydroxy derivative (XXIII). The resilylation of (XXIII) with CF3CO-N(Me)-Tms gives the bis(trimethylsilyl) derivative (XXIV), which is finally converted into the desired intermediate, the stannane (XXV) by reaction with tributyltin hydride, PPh3 and Pd dibenzylideneacetone complex.
【1】 Nicolaou, K.C.; et al.; Total synthesis of sanglifehrin A. Angew Chem. Int Ed Engl 1999, 38, 16, 2447. |
中间体序号 | 中间体编号 | 品名 | CAS号 | 分子式 | 供应商 | 用于合成 |
---|---|---|---|---|---|---|
21859 | 2,2,2-trifluoro-N-methyl-N-(trimethylsilyl)acetamide | C6H12F3NOSi | 详情 | 详情 | ||
(XVIII) | 32430 | (E,4S,5S)-5-[[tert-butyl(dimethyl)silyl]oxy]-6-[(2S,3S,4S,5S,6R,9S,11S)-9-ethyl-3,5,11-trimethyl-8-oxo-4-[(triethylsilyl)oxy]-1-oxa-7-azaspiro[5.5]undec-2-yl]-4-methyl-2-hexenal | C33H63NO5Si2 | 详情 | 详情 | |
(XIX) | 32431 | (4S,5S)-5-[[tert-butyl(dimethyl)silyl]oxy]-6-[(2S,3S,4S,5S,6R,9S,11S)-9-ethyl-3,5,11-trimethyl-8-oxo-4-[(triethylsilyl)oxy]-1-oxa-7-azaspiro[5.5]undec-2-yl]-4-methylhexanal | C33H65NO5Si2 | 详情 | 详情 | |
(XX) | 32432 | 1-Diazo-2-oxopropylphosphonic acid dimethyl ester | C5H9N2O4P | 详情 | 详情 | |
(XXI) | 32433 | (2S,3S,4S,5S,6R,9S,11S)-2-((2S,3S)-2-[[tert-butyl(dimethyl)silyl]oxy]-3-methyl-6-heptynyl)-9-ethyl-3,5,11-trimethyl-4-[(triethylsilyl)oxy]-1-oxa-7-azaspiro[5.5]undecan-8-one | C34H65NO4Si2 | 详情 | 详情 | |
(XXII) | 32434 | (2S,3S,4S,5S,6R,9S,11S)-2-((2S,3S)-7-bromo-2-[[tert-butyl(dimethyl)silyl]oxy]-3-methyl-6-heptynyl)-9-ethyl-3,5,11-trimethyl-4-[(triethylsilyl)oxy]-1-oxa-7-azaspiro[5.5]undecan-8-one | C34H64BrNO4Si2 | 详情 | 详情 | |
(XXIII) | 32435 | (2S,3R,4S,5S,6R,9S,11S)-2-[(2S,3S)-7-bromo-2-hydroxy-3-methyl-6-heptynyl]-9-ethyl-4-hydroxy-3,5,11-trimethyl-1-oxa-7-azaspiro[5.5]undecan-8-one | C22H36BrNO4 | 详情 | 详情 | |
(XXIV) | 32436 | (2S,3R,4S,5S,6R,9S,11S)-2-[(2S,3S)-7-bromo-3-methyl-2-[(trimethylsilyl)methyl]-6-heptynyl]-9-ethyl-3,5,11-trimethyl-4-[(trimethylsilyl)methyl]-1-oxa-7-azaspiro[5.5]undecan-8-one | C30H56BrNO2Si2 | 详情 | 详情 | |
(XXV) | 32437 | (2S,3R,4S,5S,6R,9S,11S)-9-ethyl-3,5,11-trimethyl-2-[(2S,3S,6E)-3-methyl-7-(tributylstannyl)-2-[(trimethylsilyl)methyl]-6-heptenyl]-4-[(trimethylsilyl)methyl]-1-oxa-7-azaspiro[5.5]undecan-8-one | C42H85NO2Si2Sn | 详情 | 详情 |
合成路线2
该中间体在本合成路线中的序号:(VII)Formylation of methyl 4-hydroxyphenylacetate (I) by reaction with MgCl2 and formaldehyde in acetonitrile yields aldehyde (II), which is then brominated by means of NBS in DMF to provide bromo derivative (III). Treatment of (III) with methoxyethoxymethyl chloride and DIEA furnishes O-protected derivative (IV), which is then subjected to Suzuki reaction with boronic acid (V) catalyzed by Pd(PPh3)4 in refluxing toluene in the presence of Na2CO3 to afford biphenyl (VI). Treatment of (VI) with dimethyl-1-diazo-2-oxopropylphosphonate (VII) in MeOH in the presence of K2CO3 furnishes alkyne (VIII), which is then coupled with the iodo-benzonitrile (IX) by means of catalytic Pd(PPh3)2Cl2, CuI and Et3N in acetonitrile to provide indole (X). Saponification of the methyl ester group of (X) with NaOH in THF, followed by hydrolysis with HCl in EtOH, gives carboxylic acid (XI), which is finally converted into the desired product by transformation of the nitrile moiety into an amidine via standard Pinner/aminolysis conditions with NH3 in EtOH followed by treatment with refluxing HCl.
【1】 Young, W.B.; Kolesnikov, A.; Rai, R.; et al.; Optimization of a screening lead for factor VIIa/TF. Bioorg Med Chem Lett 2001, 11, 17, 2253. |
【2】 Young, W.B.; Kakimura, H.; Nakaike, S.; Taniguchi, K.; Kobayashi, Y.; Ishii, T.; Amada, H.; Miyata, N.; Kametani, S.; Optimization of a screening lead for factor VIIIA/TF. 221st ACS Natl Meet (April 1 2001, San Diego) 2001, Abst MEDI 48. |
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) | 15822 | Methyl 4-hydroxyphenylacetate; methyl 2-(4-hydroxyphenyl)acetate | 14199-15-6 | C9H10O3 | 详情 | 详情 |
(II) | 48883 | methyl 2-(3-formyl-4-hydroxyphenyl)acetate | C10H10O4 | 详情 | 详情 | |
(III) | 48884 | methyl 2-(3-bromo-5-formyl-4-hydroxyphenyl)acetate | C10H9BrO4 | 详情 | 详情 | |
(IV) | 48885 | methyl 2-[3-bromo-5-formyl-4-[(2-methoxyethoxy)methoxy]phenyl]acetate | C14H17BrO6 | 详情 | 详情 | |
(V) | 40934 | 3-nitrophenylboronic acid | 13331-27-6 | C6H6BNO4 | 详情 | 详情 |
(VI) | 48886 | methyl 2-[5-formyl-6-[(2-methoxyethoxy)methoxy]-3'-nitro[1,1'-biphenyl]-3-yl]acetate | C20H21NO8 | 详情 | 详情 | |
(VII) | 32432 | 1-Diazo-2-oxopropylphosphonic acid dimethyl ester | C5H9N2O4P | 详情 | 详情 | |
(VIII) | 48887 | methyl 2-[5-ethynyl-6-[(2-methoxyethoxy)methoxy]-3'-nitro[1,1'-biphenyl]-3-yl]acetate | C21H21NO7 | 详情 | 详情 | |
(IX) | 48888 | N-(4-cyano-2-iodophenyl)methanesulfonamide | C8H7IN2O2S | 详情 | 详情 | |
(X) | 48889 | methyl 2-[5-[5-cyano-1-(methylsulfonyl)-1H-indol-2-yl]-6-[(2-methoxyethoxy)methoxy]-3'-nitro[1,1'-biphenyl]-3-yl]acetate | C29H27N3O9S | 详情 | 详情 | |
(XI) | 48890 | 2-[5-(5-cyano-1H-indol-2-yl)-6-hydroxy-3'-nitro[1,1'-biphenyl]-3-yl]acetic acid | C23H15N3O5 | 详情 | 详情 |