Hydrochloric Acid → (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 isopropyl ester hydrochloride

HRID 1895660ノート

反応式

HRID 1895660 の反応式
[CH:1]([O:4][C:5]([C:7]1[N:8]=[C:9]([C:38]([F:41])([F:40])[F:39])[N:10]2[CH2:15][CH2:14][N:13]([C:16](=[O:37])[CH2:17][C@H:18]([NH:29]C(OC(C)(C)C)=O)[CH2:19][C:20]3[CH:25]=[C:24]([F:26])[C:23]([F:27])=[CH:22][C:21]=3[F:28])[CH2:12][C:11]=12)=[O:6])([CH3:3])[CH3:2].[ClH:42]>C(OCC)(=O)C>[ClH:42].[CH:1]([O:4][C:5]([C:7]1[N:8]=[C:9]([C:38]([F:40])([F:39])[F:41])[N:10]2[CH2:15][CH2:14][N:13]([C:16](=[O:37])[CH2:17][C@H:18]([NH2:29])[CH2:19][C:20]3[CH:25]=[C:24]([F:26])[C:23]([F:27])=[CH:22][C:21]=3[F:28])[CH2:12][C:11]=12)=[O:6])([CH3:3])[CH3:2]

参加物

4

反応物 2

HCID 313Hydrochloric AcidHCID 59548961(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 isopropyl ester

生成物 1

HCID 44194523(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 isopropyl ester hydrochloride収率 97.8%

試薬・触媒・溶媒 1

HCID 8857Ethyl Acetate溶媒2 回

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 isopropyl ester 35a (0.17 g, 0.29 mmol) and 10 mL of ethyl acetate were added into the reaction flask. A solution of 5.5 N hydrochloric acid in 5 mL of ethyl acetate was then added to the reaction flask in an ice-water bath. Upon completion of the addition, the ice-water bath was removed. The reaction mixture was stirred at room temperature for 2 hours and monitored by thin layer chromatography until the disappearance of the starting materials. The reaction mixture was concentrated under reduced pressure, and washed with n-hexane (10 mL×2). The filtrate was concentrated under reduced pressure 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 isopropyl ester hydrochloride 35 (0.15 g, yield 97.8%) as a white solid.

後処理

  1. additionUpon completion of the addition
  2. customthe ice-water bath was removed
  3. concentrationThe reaction mixture was concentrated under reduced pressure
  4. washwashed with n-hexane (10 mL×2)
  5. concentrationThe filtrate was concentrated under reduced pressure

出典と根拠

ORDレコード
ord-d36afeba84924d43bc9a5188e09e0231
出典データセット
uspto-grants-2013_08
特許番号
US08513411B2

反応ノート

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