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Methanesulfonic Acid → 8a-Pyridin-2-ylmethyl-2-(2,2,2-trifluoro-ethyl)-tetrahydro-imidazo[1,5-a]pyrazine-1,3-dione

HRID 379310
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HRID 379310 반응식
C(OC([N:8]1[CH2:13][CH2:12][N:11]2[C:14](=[O:23])[N:15]([CH2:18][C:19]([F:22])([F:21])[F:20])[C:16](=[O:17])[C:10]2([CH2:24][C:25]2[CH:30]=[CH:29][CH:28]=[CH:27][N:26]=2)[CH2:9]1)=O)(C)(C)C.CS(O)(=O)=O.C(N(CC)CC)C>C(Cl)Cl>[N:26]1[CH:27]=[CH:28][CH:29]=[CH:30][C:25]=1[CH2:24][C:10]12[C:16](=[O:17])[N:15]([CH2:18][C:19]([F:21])([F:22])[F:20])[C:14](=[O:23])[N:11]1[CH2:12][CH2:13][NH:8][CH2:9]2
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참가 물질

5

반응물 3

HCID 6395Methanesulfonic AcidHCID 8471TriethylamineHCID 113163151,3-Dioxo-8a-pridin-2-ylmethyl-2-(2,2,2-trifluoro-ethyl)-hexahydroimidazo [1,5-a]pyrazine-7-carboxylic acid tert-butyl ester

생성물 1

HCID 113364048a-Pyridin-2-ylmethyl-2-(2,2,2-trifluoro-ethyl)-tetrahydro-imidazo[1,5-a]pyrazine-1,3-dione수율 97%

시약·촉매·용매 1

HCID 6344
Dichloromethane
용매

실험 절차

To a solution of 1,3-dioxo-8a-pyridin-2-ylmethyl-2-(2,2,2-trifluoro-ethyl)-hexahydro-imidazo[1,5a]pyrazine-7carboxylic acid tert-butyl ester (prepared as described in Step 5, 1.89 g, 4.4 mmol) in CH2Cl2 (20 mL) was added MeSO3H (2.14 g, 22 mmol). The reaction mixture was stirred at room temperature for one hour. Triethylamine (2.45 g, 24.2 mmol) was added to the solution. The organic layer was washed with 100 mL of H2O, brine, dried over MgSO4, and concentrated to give a 1.4 g of the title compound as a yellow oil (97%). The oil solidified upon granulation in hexane or upon cooling.

후처리

  1. washThe organic layer was washed with 100 mL of H2O, brine
  2. dry with materialdried over MgSO4
  3. concentrationconcentrated

출처 및 근거

ORD 기록
ord-1af3afaf577c445199df39fddc2417da
출처 데이터셋
uspto-grants-2001_10
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US06297380B1

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