反応式
[CH2:1]([O:3][C:4]([O:6][CH2:7][CH2:8][O:9][C:10]([C:12]1[N:13]=[C:14]([C:43]([F:46])([F:45])[F:44])[N:15]2[CH2:20][CH2:19][N:18]([C:21](=[O:42])[CH2:22][C@H:23]([NH:34]C(OC(C)(C)C)=O)[CH2:24][C:25]3[CH:30]=[C:29]([F:31])[C:28]([F:32])=[CH:27][C:26]=3[F:33])[CH2:17][C:16]=12)=[O:11])=[O:5])[CH3:2].[ClH:47]>C(OCC)(=O)C>[ClH:47].[CH2:1]([O:3][C:4]([O:6][CH2:7][CH2:8][O:9][C:10]([C:12]1[N:13]=[C:14]([C:43]([F:44])([F:45])[F:46])[N:15]2[CH2:20][CH2:19][N:18]([C:21](=[O:42])[CH2:22][C@H:23]([NH2:34])[CH2:24][C:25]3[CH:30]=[C:29]([F:31])[C:28]([F:32])=[CH:27][C:26]=3[F:33])[CH2:17][C:16]=12)=[O:11])=[O:5])[CH3:2]参加物
反応物 2
生成物 1
試薬・触媒・溶媒 1
実験手順
(R)-7-[3-tert-Butoxycarbonylamino-4-(2,4,5-trifluoro-phenyl)-butyryl]-3-trifluoromethyl-5,6,7,8-tetrahydro-imidazo[1,5-a]pyrazine-1-carboxylic acid (1-ethoxycarbonyloxy)-ethyl ester 34a (0.26 g, 0.39 mmol) and 5 mL of ethyl acetate were added into the reaction flask. A solution of 6.5 N hydrochloric acid in 3 mL of ethyl acetate was then added to the flask. The reaction mixture was stirred at room temperature for 6 hours and monitored by thin layer chromatography until the disappearance of the starting materials. The reaction mixture was concentrated under reduced pressure. The resulting residue was purified by silica gel column chromatography to obtain the title compound (R)-7-[3-amino-4-(2,4,5-trifluoro-phenyl)-butyryl]-3-trifluoromethyl-5,6,7,8-tetrahydro-imidazo[1,5-a]pyrazine-1-carboxylic acid (1-ethoxycarbonyloxy)-ethyl ester hydrochloride 34 (0.2 g, yield 85%) as a white solid.
後処理
- concentrationThe reaction mixture was concentrated under reduced pressure
- customThe resulting residue was purified by silica gel column chromatography
出典と根拠
- ORDレコード
- ord-52815ee926814c2a8b62cbd6469365da
- 出典データセット
- uspto-grants-2012_06
- 特許番号
- US08207161B2
関連ノート
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