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【结 构 式】

【分子编号】28131

【品名】(4S)-4-benzyl-3-(3-methylbutanoyl)-1,3-oxazolidin-2-one

【CA登记号】

【 分 子 式 】C15H19NO3

【 分 子 量 】261.3208

【元素组成】C 68.94% H 7.33% N 5.36% O 18.37%

与该中间体有关的原料药合成路线共 5 条

合成路线1

该中间体在本合成路线中的序号:(V)

Alkylation of 3-hydroxy-4-methoxybenzyl alcohol (I) with 1-bromo-3-methoxypropane (II) gives ether (III). Subsequent conversion of benzyl alcohol (III) into bromide (IV) is carried out using bromotrimetylsilane. The chiral isovaleryloxazolidinone (V) is alkylated with bromide (IV) by means of LiHMDS to afford (VI), which is hydrolyzed to the (S)-2-aryl-2-isopropylpropionic acid (VII) by means of lithium peroxide. The reduction of acid (VII) to the corresponding alcohol with NaBH4/I2 reagent, followed by treatment with PPh3 and NBS, provides bromide (VIII). Alkylation of the chiral dimethoxydihydropyrazin (IX) with bromide (VIII) produces (X). Further hydrolysis of the pyrazine ring of (X) with HCl, followed by Boc protection of the resulting (S,S)-amino ester, yields compound (XI). Reduction of the ester group of (XI) with DIBAL gives aldehyde (XII). This compound is condensed with the Grignard reagent (XIII) to afford the diastereomeric mixture of amino alcohols (XIV). Treatment of mixture (XIV) with 2,2-dimethoxypropane (XV) and TsOH produces a mixture of oxazolidines, from which the required (S,S,S)-isomer (XVI) is isolated by flash chromatography. Hydrogenolitic deprotection of the benzyl ether of (XVI) gives alcohol (XVII).

1 Mealy, N.E.; Castañer, R.M.; Silvestre, J.S.; Castañer, J.; Aliskiren Fumarate. Drugs Fut 2001, 26, 12, 1139.
2 Rigollier, P.; Stutz, S.; Goeschke, R.; Yamaguchi, Y.; Maibaum, J.; Wood, J.; Structural modification of the P2' position of 2,7-dialkyl substituted 5(S)-amino-4(S)-hydroxy-8-phenyl-octane-carboxamides: Discovery of a potent non-peptide renin inhibitor active after once daily dosing in marmosets. 15th European Federation for Medicinal Chemistry International Symposium on Medicinal Chemistry (Sept 6 1998, Edinburgh) 1998, Abst P.230.
3 Göschke, R.; Maibaum, J.K.; Schilling, W.; Stutz, S.; Rigollier, P.; Yamaguchi, Y.; Cohen, N.C.; Herold, P. (Novartis AG); Delta-amino-gamma-hydroxy-omega-aryl alkanoic acid amides with enzyme especially renin inhibiting activities. EP 0678500; EP 0678503; JP 1996053434; JP 1996081430; US 5559111; US 5627182; US 5646143 .
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) 28115 5-(hydroxymethyl)-2-methoxyphenol 4383-06-6 C8H10O3 详情 详情
(II) 17319 1-bromo-3-methoxypropane; 3-bromopropyl methyl ether C4H9BrO 详情 详情
(III) 28116 [4-methoxy-3-(3-methoxypropoxy)phenyl]methanol 172900-74-2 C12H18O4 详情 详情
(IV) 28117 3-[5-(bromomethyl)-2-methoxyphenoxy]propyl methyl ether 172900-73-1 C12H17BrO3 详情 详情
(V) 28131 (4S)-4-benzyl-3-(3-methylbutanoyl)-1,3-oxazolidin-2-one C15H19NO3 详情 详情
(VI) 28118 (4S)-4-benzyl-3-[(2R)-2-[4-methoxy-3-(3-methoxypropoxy)benzyl]-3-methylbutanoyl]-1,3-oxazolidin-2-one C27H35NO6 详情 详情
(VII) 28119 (2R)-2-[4-methoxy-3-(3-methoxypropoxy)benzyl]-3-methylbutyric acid C17H26O5 详情 详情
(VIII) 28120 3-[5-[(2R)-2-(bromomethyl)-3-methylbutyl]-2-methoxyphenoxy]propyl methyl ether 172900-69-5 C17H27BrO3 详情 详情
(IX) 10296 (R)-2,5-Dihydro-3,6-dimethoxy-2-isopropylpyrazine; (3R)-3-Isopropyl-5-methoxy-3,6-dihydro-2-pyrazinyl methyl ether; (2R)-2-Isopropyl-3,6-dimethoxy-2,5-dihydropyrazine 109838-85-9 C9H16N2O2 详情 详情
(X) 28121 (2R,5S)-2-isopropyl-3,6-dimethoxy-5-[(2S)-2-[4-methoxy-3-(3-methoxypropoxy)benzyl]-3-methylbutyl]-2,5-dihydropyrazine C26H42N2O5 详情 详情
(XI) 28122 methyl (2S,4S)-2-[(tert-butoxycarbonyl)amino]-4-[4-methoxy-3-(3-methoxypropoxy)benzyl]-5-methylhexanoate C25H41NO7 详情 详情
(XII) 28123 tert-butyl (1S,3S)-1-formyl-3-[4-methoxy-3-(3-methoxypropoxy)benzyl]-4-methylpentylcarbamate C24H39NO6 详情 详情
(XIII) 28124 [(2S)-2-[(benzyloxy)methyl]-3-methylbutyl](bromo)magnesium C13H19BrMgO 详情 详情
(XIV) 28125 tert-butyl (1S,4S)-4-[(benzyloxy)methyl]-2-hydroxy-1-[(2S)-2-[4-methoxy-3-(3-methoxypropoxy)benzyl]-3-methylbutyl]-5-methylhexylcarbamate C37H59NO7 详情 详情
(XV) 10722 1-Methoxy-1-methylethyl methyl ether; 2,2-Dimethoxypropane 77-76-9 C5H12O2 详情 详情
(XVI) 28126 tert-butyl (4S,5S)-5-[(2S)-2-[(benzyloxy)methyl]-3-methylbutyl]-4-[(2S)-2-[4-methoxy-3-(3-methoxypropoxy)benzyl]-3-methylbutyl]-2,2-dimethyl-1,3-oxazolidine-3-carboxylate C40H63NO7 详情 详情
(XVII) 28127 tert-butyl (4S,5S)-5-[(2S)-2-(hydroxymethyl)-3-methylbutyl]-4-[(2S)-2-[4-methoxy-3-(3-methoxypropoxy)benzyl]-3-methylbutyl]-2,2-dimethyl-1,3-oxazolidine-3-carboxylate C33H57NO7 详情 详情

合成路线2

该中间体在本合成路线中的序号:(V)

The intermediate gamma-butyrolactone (XXVIII) has been obtained as follows: Allylation of the imidazolidinone intermediate (V) with allyl bromide (XXI) and LiHMDS in THF gives the chiral intermediate (XXII), which by dihydroxylation and cleavage of the chiral auxiliary with OsO4 and NMMO in tert-butanol/acetone/water yields the lactone alcohol (XXIII). Oxidation of (XXIII) with NaIO4 and RuCl3 in CCl4/acetonitrile/water affords the carboxylic acid (XXIV), which by treatment with (COCl)2 in toluene provides the acyl chloride (XXV). Esterification of (XXV) with benzyl alcohol gives the corresponding benzyl ester as a diastereomeric mixture, from which the desired isomer (XXVI) is separated by flash chromatography. Hydrogenolysis of the benzyl ester (XXVI) with H2 over Pd/C in ethyl acetate yields the carboxylic acid (XXVII), which is treated with oxalyl chloride in toluene to afford the desired gamma-butyrolactone intermediate (XXVIII).

1 Mealy, N.E.; Castañer, R.M.; Silvestre, J.S.; Castañer, J.; Aliskiren Fumarate. Drugs Fut 2001, 26, 12, 1139.
2 Rüeger, H.; Maibaum, J.; Stutz, S.; Spindler, F.; Göschke, R.; A convergent synthesis approach towards CGP60536B, a non-peptide orally potent renin inhibitor, via an enantiomerically pure ketolactone intermediate. Tetrahedron Lett 2000, 41, 51, 10085.
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(V) 28131 (4S)-4-benzyl-3-(3-methylbutanoyl)-1,3-oxazolidin-2-one C15H19NO3 详情 详情
(XXI) 11463 3-Bromo-1-propene; 3-Bromopropene;allyl bromide 106-95-6 C3H5Br 详情 详情
(XXII) 50566 (4S)-4-benzyl-3-[(2S)-2-isopropyl-4-pentenoyl]-1,3-oxazolidin-2-one C18H23NO3 详情 详情
(XXIII) 50567 (3S)-5-(hydroxymethyl)-3-isopropyldihydro-2(3H)-furanone C8H14O3 详情 详情
(XXIV) 50568 (4S)-4-isopropyl-5-oxotetrahydro-2-furancarboxylic acid C8H12O4 详情 详情
(XXV) 50569 (4S)-4-isopropyl-5-oxotetrahydro-2-furancarbonyl chloride C8H11ClO3 详情 详情
(XXVI) 50570 benzyl (2S,4S)-4-isopropyl-5-oxotetrahydro-2-furancarboxylate C15H18O4 详情 详情
(XXVII) 50571 (2S,4S)-4-isopropyl-5-oxotetrahydro-2-furancarboxylic acid C8H12O4 详情 详情
(XXVIII) 50572 (2S,4S)-4-isopropyl-5-oxotetrahydro-2-furancarbonyl chloride C8H11ClO3 详情 详情

合成路线3

该中间体在本合成路线中的序号:(V)

Alternatively, the chiral azido intermediate (XXXIV) can also be synthesized as follows: Alkylation of oxazolidinone (V) with 1-chloro-3-iodopropene (XLVIII) by means of LiHMDS in THF gives compound (XLIX), which is condensed with the magnesium derivative of the phenylpropyl chloride (XXX) to yield, after working up, amide (L). Bromination of (L) with NBS and phosphoric acid affords the bromolactone (LI), which by treatment with NaN3 in tripropylene glycol/water provides the azido derivative (XXXIV).

1 Mealy, N.E.; Castañer, R.M.; Silvestre, J.S.; Castañer, J.; Aliskiren Fumarate. Drugs Fut 2001, 26, 12, 1139.
2 Stutz, S.; Herold, P. (Speedel Pharma Inc.); 2-Alkyl-5-halogen-pent-4-ene carboxylic acids and their production. WO 0109079; WO 0109083 .
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(V) 28131 (4S)-4-benzyl-3-(3-methylbutanoyl)-1,3-oxazolidin-2-one C15H19NO3 详情 详情
(XXX) 50574 4-[(2R)-2-(chloromethyl)-3-methylbutyl]-1-methoxy-2-(3-methoxypropoxy)benzene; 3-[5-[(2R)-2-(chloromethyl)-3-methylbutyl]-2-methoxyphenoxy]propyl methyl ether 324763-39-5 C17H27ClO3 详情 详情
(XXXIV) 50578 (3S,5S)-5-[(1S,3S)-1-azido-3-[4-methoxy-3-(3-methoxypropoxy)benzyl]-4-methylpentyl]-3-isopropyldihydro-2(3H)-furanone C25H39N3O5 详情 详情
(XLVIII) 50590 (E)-1-chloro-3-iodo-1-propene C3H4ClI 详情 详情
(XLIX) 50591 (4S)-4-benzyl-3-[(2S,4E)-5-chloro-2-isopropyl-4-pentenoyl]-1,3-oxazolidin-2-one C18H22ClNO3 详情 详情
(L) 50592 (4S)-4-benzyl-3-[(2S,4E,7R)-2-isopropyl-7-[4-methoxy-3-(3-methoxypropoxy)benzyl]-8-methyl-4-nonenoyl]-1,3-oxazolidin-2-one C35H49NO6 详情 详情
(LI) 50593 (3S,5S)-5-[(1R,3S)-1-bromo-3-[4-methoxy-3-(3-methoxypropoxy)benzyl]-4-methylpentyl]-3-isopropyldihydro-2(3H)-furanone C25H39BrO5 详情 详情

合成路线4

该中间体在本合成路线中的序号:(I)

 

1 Rueger H, Stutz S, Goschke R, et al. 2000. A convergent synthesisi approach towards CGP60536B, a nonpeptide orally potent renin inhibitory, via an enantiomerically pure keto lactone intermediate. Tetrahedron Lett, 41(51): 10085~10089
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) 28131 (4S)-4-benzyl-3-(3-methylbutanoyl)-1,3-oxazolidin-2-one C15H19NO3 详情 详情
(II) 50566 (4S)-4-benzyl-3-[(2S)-2-isopropyl-4-pentenoyl]-1,3-oxazolidin-2-one C18H23NO3 详情 详情
(III) 50567 (3S)-5-(hydroxymethyl)-3-isopropyldihydro-2(3H)-furanone C8H14O3 详情 详情
(IV) 50569 (4S)-4-isopropyl-5-oxotetrahydro-2-furancarbonyl chloride C8H11ClO3 详情 详情
(V) 67008 benzyl (2S,4R)-4-isopropyl-5-oxotetrahydro-2-furancarboxylate   C15H18O4 详情 详情
(VI) 50570 benzyl (2S,4S)-4-isopropyl-5-oxotetrahydro-2-furancarboxylate C15H18O4 详情 详情
(VII) 50571 (2S,4S)-4-isopropyl-5-oxotetrahydro-2-furancarboxylic acid C8H12O4 详情 详情
(VIII) 50572 (2S,4S)-4-isopropyl-5-oxotetrahydro-2-furancarbonyl chloride C8H11ClO3 详情 详情
(IX) 28119 (2R)-2-[4-methoxy-3-(3-methoxypropoxy)benzyl]-3-methylbutyric acid C17H26O5 详情 详情
(X) 50573 (2R)-2-[4-methoxy-3-(3-methoxypropoxy)benzyl]-3-methyl-1-butanol C17H28O4 详情 详情
(XI) 50574 4-[(2R)-2-(chloromethyl)-3-methylbutyl]-1-methoxy-2-(3-methoxypropoxy)benzene; 3-[5-[(2R)-2-(chloromethyl)-3-methylbutyl]-2-methoxyphenoxy]propyl methyl ether 324763-39-5 C17H27ClO3 详情 详情
(XII) 50575 (3S,5S)-3-isopropyl-5-[(3S)-3-[4-methoxy-3-(3-methoxypropoxy)benzyl]-4-methylpentanoyl]dihydro-2(3H)-furanone C25H38O6 详情 详情
(XIII) 50576 (3S,5S)-5-[(1R,3S)-1-hydroxy-3-[4-methoxy-3-(3-methoxypropoxy)benzyl]-4-methylpentyl]-3-isopropyldihydro-2(3H)-furanone C25H40O6 详情 详情
(XIV) 50578 (3S,5S)-5-[(1S,3S)-1-azido-3-[4-methoxy-3-(3-methoxypropoxy)benzyl]-4-methylpentyl]-3-isopropyldihydro-2(3H)-furanone C25H39N3O5 详情 详情
(XV) 28129 3-amino-2,2-dimethylpropanamide 324763-51-1 C5H12N2O 详情 详情
(XVI) 50579 (2S,4S,5S,7S)-N-(4-amino-2,2-dimethyl-4-oxobutyl)-5-azido-4-hydroxy-2-isopropyl-7-[4-methoxy-3-(3-methoxypropoxy)benzyl]-8-methylnonanamide C31H53N5O6 详情 详情

合成路线5

该中间体在本合成路线中的序号:(VI)

 

1 Dorg H, Zhang ZL, Huang JH, et al. 2005. Practical synthesisi of an orally active renin inhibitory aliskiren. Tetrahedron Lett, 46(37): 6337~6340
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(XXV) 67017 2-cyano-2-methylpropanamide 7505-93-3 C5H8N2O 详情 详情
(I) 18455 3-hydroxy-4-methoxybenzaldehyde; Isovanillin 621-59-0 C8H8O3 详情 详情
(II) 67010 3-methoxypropyl methanesulfonate   C5H12O4S 详情 详情
(III) 61620 4-Methoxy-3-(3-methoxypropoxy)benzaldehyde 172900-75-3 C12H16O4 详情 详情
(IV) 28116 [4-methoxy-3-(3-methoxypropoxy)phenyl]methanol 172900-74-2 C12H18O4 详情 详情
(V) 28117 3-[5-(bromomethyl)-2-methoxyphenoxy]propyl methyl ether 172900-73-1 C12H17BrO3 详情 详情
(VI) 28131 (4S)-4-benzyl-3-(3-methylbutanoyl)-1,3-oxazolidin-2-one C15H19NO3 详情 详情
(VII) 28118 (4S)-4-benzyl-3-[(2R)-2-[4-methoxy-3-(3-methoxypropoxy)benzyl]-3-methylbutanoyl]-1,3-oxazolidin-2-one C27H35NO6 详情 详情
(VIII) 28119 (2R)-2-[4-methoxy-3-(3-methoxypropoxy)benzyl]-3-methylbutyric acid C17H26O5 详情 详情
(IX) 50573 (2R)-2-[4-methoxy-3-(3-methoxypropoxy)benzyl]-3-methyl-1-butanol C17H28O4 详情 详情
(X) 28120 3-[5-[(2R)-2-(bromomethyl)-3-methylbutyl]-2-methoxyphenoxy]propyl methyl ether 172900-69-5 C17H27BrO3 详情 详情
(XI) 67009 (S)-3,6-diethoxy-2-isopropyl-2,5-dihydropyrazine 134870-62-5 C11H20N2O2 详情 详情
(XII) 67011 3,6-diethoxy-2-isopropyl-5-(2-(4-methoxy-3-(3-methoxypropoxy)benzyl)-3-methylbutyl)-2,5-dihydropyrazine   C28H46N2O5 详情 详情
(XIII) 67012 ethyl 2-amino-4-(4-methoxy-3-(3-methoxypropoxy)benzyl)-5-methylhexanoate   C21H35NO5 详情 详情
(XIV) 28122 methyl (2S,4S)-2-[(tert-butoxycarbonyl)amino]-4-[4-methoxy-3-(3-methoxypropoxy)benzyl]-5-methylhexanoate C25H41NO7 详情 详情
(XV) 67013 tert-butyl (1-hydroxy-4-(4-methoxy-3-(3-methoxypropoxy)benzyl)-5-methylhexan-2-yl)carbamate   C24H41NO6 详情 详情
(XVI) 28123 tert-butyl (1S,3S)-1-formyl-3-[4-methoxy-3-(3-methoxypropoxy)benzyl]-4-methylpentylcarbamate C24H39NO6 详情 详情
(XVII) 18710 Benzyl alcohol; Phenylmethanol 100-51-6 C7H8O 详情 详情
(XVIII) 14560 Benzyl chloromethyl ether; 1-[(chloromethoxy)methyl]benzene 3587-60-8 C8H9ClO 详情 详情
(XIX) 23285 (4R)-4-benzyl-3-(3-methylbutanoyl)-1,3-oxazolidin-2-one C15H19NO3 详情 详情
(XX) 67014 4-benzyl-3-(2-((benzyloxy)methyl)-3-methylbutanoyl)oxazolidin-2-one   C23H27NO4 详情 详情
(XXI) 67015 (R)-2-((benzyloxy)methyl)-3-methylbutanoic acid   C13H18O3 详情 详情
(XXII) 67016 2-((benzyloxy)methyl)-3-methylbutan-1-ol   C13H20O2 详情 详情
(XXIII) 66991 (R)-((2-(bromomethyl)-3-methylbutoxy)methyl)benzene   C13H19BrO 详情 详情
(XXIV) 12122 Cyanoacetamide; 2-Cyanoacetamide 107-91-5 C3H4N2O 详情 详情
(XXVI) 67018 benzyl (3-amino-2,2-dimethyl-3-oxopropyl)carbamate   C13H18N2O3 详情 详情
(XXVII) 28129 3-amino-2,2-dimethylpropanamide 324763-51-1 C5H12N2O 详情 详情
(XXVIII) 28125 tert-butyl (1S,4S)-4-[(benzyloxy)methyl]-2-hydroxy-1-[(2S)-2-[4-methoxy-3-(3-methoxypropoxy)benzyl]-3-methylbutyl]-5-methylhexylcarbamate C37H59NO7 详情 详情
(XXIX) 67019 tert-butyl (6-hydroxy-8-(hydroxymethyl)-3-(4-methoxy-3-(3-methoxypropoxy)benzyl)-2,9-dimethyldecan-5-yl)carbamate   C30H53NO7 详情 详情
(XXX) 67004 tert-butyl (1-(4-isopropyl-5-oxotetrahydrofuran-2-yl)-3-(4-methoxy-3-(3-methoxypropoxy)benzyl)-4-methylpentyl)carbamate   C30H49NO7 详情 详情
(XXXI) 67020 tert-butyl (8-((1-amino-2-methyl-1-oxopropan-2-yl)carbamoyl)-6-hydroxy-3-(4-methoxy-3-(3-methoxypropoxy)benzyl)-2,9-dimethyldecan-5-yl)carbamate   C34H59N3O8 详情 详情
Extended Information