Hydrochloric Acid → (R)-3-amino-1-[1-((R)-3-hydroxy-pyrrolidine-1-carbonyl)-3-trifluoromethyl-5,6-dihydro-8H-imidazo[1,5-a]pyrazin-7-yl]-4-(2,4,5-trifluoro-phenyl)-butan-1-one hydrochloride

HRID 221455Notes

Reaction equation

HRID 221455 reaction equation
C(OC(=O)[NH:7][C@H:8]([CH2:33][C:34]1[CH:39]=[C:38]([F:40])[C:37]([F:41])=[CH:36][C:35]=1[F:42])[CH2:9][C:10]([N:12]1[CH2:17][CH2:16][N:15]2[C:18]([C:29]([F:32])([F:31])[F:30])=[N:19][C:20]([C:21]([N:23]3[CH2:27][CH2:26][C@@H:25]([OH:28])[CH2:24]3)=[O:22])=[C:14]2[CH2:13]1)=[O:11])(C)(C)C.[ClH:44]>C(OCC)(=O)C>[ClH:44].[NH2:7][C@H:8]([CH2:33][C:34]1[CH:39]=[C:38]([F:40])[C:37]([F:41])=[CH:36][C:35]=1[F:42])[CH2:9][C:10]([N:12]1[CH2:17][CH2:16][N:15]2[C:18]([C:29]([F:32])([F:31])[F:30])=[N:19][C:20]([C:21]([N:23]3[CH2:27][CH2:26][C@@H:25]([OH:28])[CH2:24]3)=[O:22])=[C:14]2[CH2:13]1)=[O:11]

Participants

4

Reactant 2

HCID 313Hydrochloric AcidHCID 57518428HCID 57518428, compound

Product 1

HCID 44194046(R)-3-amino-1-[1-((R)-3-hydroxy-pyrrolidine-1-carbonyl)-3-trifluoromethyl-5,6-dihydro-8H-imidazo[1,5-a]pyrazin-7-yl]-4-(2,4,5-trifluoro-phenyl)-butan-1-one hydrochlorideYield 72%

Reagents, catalysts & solvents 1

HCID 8857Ethyl AcetateSolvent

Procedure

(R)-[3-[1-((R)-3-Hydroxy-pyrrolidine-1-carbonyl)-3-trifluoromethyl-5,6-dihydro-8H-imidazo[1,5-a]pyrazin-7-yl]-3-oxo-1-(2,4,5-trifluoro-benzyl)-propyl]-carbamic acid tert-butyl ester 14a (90 mg, 0.15 mmol) was added to a solution of 2.3 N hydrochloric acid in 10 mL of ethyl acetate. The reaction mixture was reacted at room temperature overnight 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)-3-amino-1-[1-((R)-3-hydroxy-pyrrolidine-1-carbonyl)-3-trifluoromethyl-5,6-dihydro-8H-imidazo[1,5-a]pyrazin-7-yl]-4-(2,4,5-trifluoro-phenyl)-butan-1-one hydrochloride 14 (60 mg, yield 72%) as a white solid.

Workup

  1. customThe reaction mixture was reacted at room temperature overnight
  2. concentrationThe reaction mixture was concentrated under reduced pressure
  3. customThe resulting residue was purified by silica gel column chromatography

Sources & evidence

ORD record
ord-bfadffde3f744aa88a022f04ee3ecda2
Source dataset
uspto-grants-2012_06
Patent number
US08207161B2

Reaction notes

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