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

【结 构 式】

【分子编号】41639

【品名】(1S,3R)-3-[[(tert-butoxycarbonyl)amino]methyl]cyclohexanecarboxylic acid

【CA登记号】

【 分 子 式 】C13H23NO4

【 分 子 量 】257.32996

【元素组成】C 60.68% H 9.01% N 5.44% O 24.87%

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:(V)

Synthesis of intermediate (VIII): Hydrogenation of m-cyanobenzoic acid (I) with H2 over Raney-Ni in ammonia gives amine (II), which is treated with Boc2O and NaOH in dioxane to provide protected amine (III). Reduction of (III) by means of PtO2 and H2 in acetic acid yields a 10:1 mixture of cis/trans ciclohexane derivatives (rac)-(IV)/(rac)-(V). The racemic cis compound obtained is enantiomerically resolved and stereomer (V) is then reduced with BH3.Me2S in THF providing alcohol (VI), which is converted into azide (VII) after treatment with NaN3 in DMF of the mesylate derivative obtained by treatment of (VI) with Et3N, DMAP and MsCl. Finally amino derivative (VIII) is obtained by hydrogenation of azide (VII) over Pd/C in MeOH. Synthesis of intermediate (XII): beta-Methyl-D-tryptophan methyl ester (IX) reacts with piperidine derivative (X) in presence of DSC and DIEA in CH2Cl2 to afford (XI), whose methyl ester is hydrolyzed in THF with LiOH in EtOH/H2O. Synthesis EN 269873: Finally intermediate (XII) is coupled with (VIII) with EDC and HOBt, and the Boc group is removed with TFA in CH2Cl2 to yield the desired product.

1 Patchett, A.A.; Yang, L.; Pasternak, A.; Berk, S. (Merck & Co., Inc.); Somatostatin agonists. EP 1023061; US 6057338; WO 9844921 .
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(rac)-(IV) 41637 (rac)-(1S*,3S*)-3-[[(tert-butoxycarbonyl)amino]methyl]cyclohexanecarboxylic acid C13H23NO4 详情 详情
(rac)-(V) 41638 (rac)-(1S*,3R*)-3-[[(tert-butoxycarbonyl)amino]methyl]cyclohexanecarboxylic acid C13H23NO4 详情 详情
(I) 20406 3-cyanobenzoic acid 1877-72-1 C8H5NO2 详情 详情
(II) 20407 3-(aminomethyl)benzoic acid C8H9NO2 详情 详情
(III) 20408 3-[[(tert-butoxycarbonyl)amino]methyl]benzoic acid C13H17NO4 详情 详情
(V) 41639 (1S,3R)-3-[[(tert-butoxycarbonyl)amino]methyl]cyclohexanecarboxylic acid C13H23NO4 详情 详情
(VI) 20412 tert-butyl [(1S,3R)-3-(hydroxymethyl)cyclohexyl]methylcarbamate C13H25NO3 详情 详情
(VII) 20414 tert-butyl [(1S,3R)-3-(azidomethyl)cyclohexyl]methylcarbamate C13H24N4O2 详情 详情
(VIII) 20415 tert-butyl [(1S,3R)-3-(aminomethyl)cyclohexyl]methylcarbamate C13H26N2O2 详情 详情
(IX) 29274 methyl (2R,3S)-2-amino-3-(1H-indol-3-yl)butanoate C13H16N2O2 详情 详情
(X) 12138 1-(4-Piperidinyl)-1,3-dihydro-2H-benzimidazol-2-one; 4-(2-Keto-1-benzimidazolinyl)piperidine 20662-53-7 C12H15N3O 详情 详情
(XI) 29401 methyl (2R,3S)-3-(1H-indol-3-yl)-2-([[4-(2-oxo-2,3-dihydro-1H-benzimidazol-1-yl)-1-piperidinyl]carbonyl]amino)butanoate C26H29N5O4 详情 详情
(XII) 29402 (2R,3S)-3-(1H-indol-3-yl)-2-([[4-(2-oxo-2,3-dihydro-1H-benzimidazol-1-yl)-1-piperidinyl]carbonyl]amino)butyric acid C25H27N5O4 详情 详情
Extended Information