Triethylamine → HCID 57518442, compound

HRID 221467Notes

Reaction equation

HRID 221467 reaction equation
[C:1]([O:5][C:6]([NH:8][C@H:9]([CH2:29][C:30]1[CH:35]=[C:34]([F:36])[C:33]([F:37])=[CH:32][C:31]=1[F:38])[CH2:10][C:11]([N:13]1[CH2:18][CH2:17][N:16]2[C:19]([C:25]([F:28])([F:27])[F:26])=[N:20][C:21]([C:22](O)=[O:23])=[C:15]2[CH2:14]1)=[O:12])=[O:7])([CH3:4])([CH3:3])[CH3:2].[CH3:39][S:40]([N:43]1[CH2:48][CH2:47][NH:46][CH2:45][CH2:44]1)(=[O:42])=[O:41].C(N(CC)CC)C.O=C1N(P(Cl)(N2CCOC2=O)=O)CCO1>ClCCl>[C:1]([O:5][C:6](=[O:7])[NH:8][C@H:9]([CH2:29][C:30]1[CH:35]=[C:34]([F:36])[C:33]([F:37])=[CH:32][C:31]=1[F:38])[CH2:10][C:11]([N:13]1[CH2:18][CH2:17][N:16]2[C:19]([C:25]([F:28])([F:27])[F:26])=[N:20][C:21]([C:22]([N:46]3[CH2:47][CH2:48][N:43]([S:40]([CH3:39])(=[O:42])=[O:41])[CH2:44][CH2:45]3)=[O:23])=[C:15]2[CH2:14]1)=[O:12])([CH3:2])([CH3:4])[CH3:3]

Participants

6

Reactant 4

HCID 8471TriethylamineHCID 152842Bis(2-oxo-3-oxazolidinyl)phosphinic chlorideHCID 7091611-(Methylsulfonyl)piperazineHCID 59548952(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

Product 1

HCID 57518442HCID 57518442, compoundYield 106.3%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

(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 2a (0.15 g, 0.27 mmol), 1-methanesulfonyl-piperazine (0.109 g, 0.55 mmol) and triethylamine (0.38 mL, 2.7 mmol) were dissolved in 10 mL of dichloromethane under stirring, and bis(2-oxo-3-oxazolidinyl)phosphinic chloride (0.139 g, 0.55 mmol) was then added to the solution. 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-[1-(4-methanesulfonyl-piperazine-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 22a (0.2 g) 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-f6e388ee8119462b86444255b257686e
Source dataset
uspto-grants-2012_06
Patent number
US08207161B2

Reaction notes

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