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【结 构 式】

【药物名称】SCH-221153

【化学名称】3-[4-[1-(1H-Benzimidazol-2-ylmethyl)-3-cyclohexylureidomethyl]benzamido]-2(S)-(benzyloxycarbonylamino)propionic acid
      3-[4-[1-(1H-Benzimidazol-2-ylmethyl)-3-cyclohexylureidomethyl]benzamido]-N-(benzyloxycarbonyl)-L-alanine

【CA登记号】273399-24-9

【 分 子 式 】C34H38N6O6

【 分 子 量 】626.71856

【开发单位】Schering-Plough (Originator)

【药理作用】Oncolytic Drugs, Angiogenesis Inhibitors, Integrin alphavbeta3 (Vitronectin) Antagonists, Integrin alphavbeta5 Antagonists

合成路线1

The title compound was prepared by solid-phase synthesis using a 2-chlorotrityl resin, chloride form. N2-(Benzyloxycarbonyl)-L-2,3-diaminopropionic acid (I) was protected as the Fmoc derivative (II) upon treatment with N-(Fmoc-oxy)succinimide. After attachment of the protected diaminoacid (II) to the chloride resin, the Fmoc group was selectively removed by means of piperidine in DMF to give the resin-bound Cbz-2,3-diaminopropionic acid (III). Acylation of the free amino function of (III) with 4-(chloromethyl)benzoyl chloride (IV) provided amide (V). The chloride group of (V) was then displaced with 2-(aminomethyl)benzimidazole (VI), yielding resin (VII). The required urea functionality (IX) was obtained by coupling (VII) with cyclohexyl isocyanate (VIII). Finally, cleavage of the carboxylic acid from the resin (IX) was achieved by treatment with trifluoroacetic acid in moist dichloromethane.

1 Neustadt, B.R.; Smith, E.M. (Schering Corp.); Benzimidazole cpds. that are vitronectin receptor antagonists. EP 1135374; WO 0032578 .
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),(III) 18008 (2S)-3-amino-2-[[(benzyloxy)carbonyl]amino]propionic acid; N(alpha)-Z-L-2,3-diaminopropionic acid 35761-26-3 C11H14N2O4 详情 详情
(II) 49111 (2S)-2-[[(benzyloxy)carbonyl]amino]-3-[[(9H-fluoren-9-ylmethoxy)carbonyl]amino]propionic acid C26H24N2O6 详情 详情
(IV) 49112 4-(Chloromethyl)benzoyl chloride; p-(Chloromethyl)benzoyl chloride 876-08-4 C8H6Cl2O 详情 详情
(V) 49113 (2S)-2-[[(benzyloxy)carbonyl]amino]-3-[[4-(chloromethyl)benzoyl]amino]propionic acid C19H19ClN2O5 详情 详情
(VI) 49114 1H-benzimidazol-2-ylmethylamine; 1H-benzimidazol-2-ylmethanamine C8H9N3 详情 详情
(VII) 49115 (2S)-3-[(4-[[(1H-benzimidazol-2-ylmethyl)amino]methyl]benzoyl)amino]-2-[[(benzyloxy)carbonyl]amino]propionic acid C27H27N5O5 详情 详情
(VIII) 10108 N-Methyl(1-naphthyl)methanamine; N-Methyl-N-(1-naphthylmethyl)amine; 1-Methyl-1-naphthalenemethylamine 65473-13-4 C12H13N 详情 详情
(IX) 49116 (2S)-3-[[4-([(1H-benzimidazol-2-ylmethyl)[(cyclohexylamino)carbonyl]amino]methyl)benzoyl]amino]-2-[[(benzyloxy)carbonyl]amino]propionic acid C34H38N6O6 详情 详情
Extended Information