• English
  • 简体中文
Login Register
Current Location: Home > Feedback Help Print

【结 构 式】

【分子编号】44908

【品名】methyl 4-[(2S)-2-(acetamido)-3-methoxy-3-oxopropyl]-2-(1,3-dithiolan-2-yl)benzoate

【CA登记号】

【 分 子 式 】C17H21NO5S2

【 分 子 量 】383.48948

【元素组成】C 53.24% H 5.52% N 3.65% O 20.86% S 16.72%

与该中间体有关的原料药合成路线共 1 条

合成路线1

该中间体在本合成路线中的序号:(XV)

L-3-Formyl-N-acetyltyrosine methyl ester (XII) was protected as the dithioacetal (XIII) using ethanedithiol and boron trifluoride etherate. After conversion of the phenol group of (XIII) into aryl triflate (XIV) upon treatment with N-phenyltrifluoromethanesulfonimide, its carboxylation with carbon monoxide in MeOH-DMSO in the presence of palladium catalyst generated the methyl ester (XV). Selective hydrolysis of the aliphatic ester of (XV) with LiOH at low temperature provided carboxylic acid (XVI), which was then coupled with the racemic amine (XI) to afford amide (XVII) as a diastereomeric mixture. Hydrolysis of the thioketal group of (XVII) to give aldehyde (XVIII) was achieved by treatment with mercuric perchlorate. The remaining methyl ester of (XVIII) was hydrolyzed with LiOH, and the desired diastereoisomer was finally isolated by RP-HPLC.

1 Bohacek, R.S.; Rickles, R.J.; Barlet, C.; Holt, D.A.; Guan, W.; Smith, J.A.; Baron, R.; Sawyer, T.K.; Violette, S.M.; Shakespeare, W.C.; A Src SH2 selective binding compound inhibits osteoclast-mediated resorption. Chem Biol 2000, 7, 3, 225.
2 Bohacek, R.; Sawyer, T.K.; Yang, M.G.; Eyermann, C.J.; Sundaramoorthi, R.; Shakespeare, W.C. (Ariad Pharmaceuticals Inc.); Bicyclic signal transduction inhibitors, compsns. containing them & uses thereof. WO 0027802 .
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(XI) 43278 9-amino-3-(cyclohexylmethoxy)-6,7,8,9-tetrahydro-5H-benzo[a]cycloheptene-2-carboxamide C19H28N2O2 详情 详情
(XII) 44905 methyl (2S)-2-(acetamido)-3-(3-formyl-4-hydroxyphenyl)propanoate C13H15NO5 详情 详情
(XIII) 44906 methyl (2S)-2-(acetamido)-3-[3-(1,3-dithiolan-2-yl)-4-hydroxyphenyl]propanoate C15H19NO4S2 详情 详情
(XIV) 44907 methyl (2S)-2-(acetamido)-3-(3-(1,3-dithiolan-2-yl)-4-[[(trifluoromethyl)sulfonyl]oxy]phenyl)propanoate C16H18F3NO6S3 详情 详情
(XV) 44908 methyl 4-[(2S)-2-(acetamido)-3-methoxy-3-oxopropyl]-2-(1,3-dithiolan-2-yl)benzoate C17H21NO5S2 详情 详情
(XVI) 44909 (2S)-2-(acetamido)-3-[3-(1,3-dithiolan-2-yl)-4-(methoxycarbonyl)phenyl]propionic acid C16H19NO5S2 详情 详情
(XVII) 44910 methyl 4-((2S)-2-(acetamido)-3-[[3-(aminocarbonyl)-2-(cyclohexylmethoxy)-6,7,8,9-tetrahydro-5H-benzo[a]cyclohepten-5-yl]amino]-3-oxopropyl)-2-(1,3-dithiolan-2-yl)benzoate C35H45N3O6S2 详情 详情
(XVIII) 44911 methyl 4-((2S)-2-(acetamido)-3-[[3-(aminocarbonyl)-2-(cyclohexylmethoxy)-6,7,8,9-tetrahydro-5H-benzo[a]cyclohepten-5-yl]amino]-3-oxopropyl)-2-formylbenzoate C33H41N3O7 详情 详情
Extended Information