Acetic Acid → (+/-) 9-Benzylamino-2-pyrimidin-4-yl-5,6,8,9-tetrahydro-7-oxa-1,4a-diaza-benzocyclohepten-4-one

HRID 1890241노트

반응식

HRID 1890241 반응식
[NH2:1][CH:2]1[C:8]2=[N:9][C:10]([C:14]3[CH:19]=[CH:18][N:17]=[CH:16][N:15]=3)=[CH:11][C:12](=[O:13])[N:7]2[CH2:6][CH2:5][O:4][CH2:3]1.[CH:20](=O)[C:21]1[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=1.C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+].C(O)(=O)C>ClCCl>[CH2:20]([NH:1][CH:2]1[C:8]2=[N:9][C:10]([C:14]3[CH:19]=[CH:18][N:17]=[CH:16][N:15]=3)=[CH:11][C:12](=[O:13])[N:7]2[CH2:6][CH2:5][O:4][CH2:3]1)[C:21]1[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=1

참가 물질

6

반응물 4

HCID 176Acetic AcidHCID 240BenzaldehydeHCID 5049666Sodium triacetoxyborohydrideHCID 68626960HCID 68626960, 화합물

생성물 1

HCID 44159499(+/-) 9-Benzylamino-2-pyrimidin-4-yl-5,6,8,9-tetrahydro-7-oxa-1,4a-diaza-benzocyclohepten-4-one수율 18%

시약·촉매·용매 1

HCID 6344Dichloromethane용매2회

실험 절차

To a solution of 0.090 g (0.35 mmol) of (+/−)-9-amino-2-pyrimidin-4-yl-5,6,8,9-tetrahydro-7-oxa-1,4a-diaza-benzocyclohepten-4-one in 3.5 ml of dichloromethane was added 0.040 mL (0.36 mmol) of benzaldehyde, 0.184 g (0.87 mmol) of sodium triacetoxyborohydride and few drops of glacial acetic acid. The reaction mixture was stirred at room temperature for 15 hours. The residue was dissolved in dichloromethane and a saturated aqueous solution of sodium carbonate, extracted with dichloromethane and washed with saturated aqueous solution of sodium chloride, dried over sodium sulfate and evaporated. The crude product was purified by chromatography on silica gel eluting with a mixture of dichloromethane/methanol/aqueous ammonia solution (29%) in the proportions 95/5/0.5 to give 0.022 g (13%) of pure product.

후처리

  1. extractiona saturated aqueous solution of sodium carbonate, extracted with dichloromethane
  2. washwashed with saturated aqueous solution of sodium chloride
  3. dry with materialdried over sodium sulfate
  4. customevaporated
  5. customThe crude product was purified by chromatography on silica gel eluting with a mixture of dichloromethane/methanol/aqueous ammonia solution (29%) in the proportions 95/5/0.5

출처 및 근거

ORD 기록
ord-ababc5abe15c4369ba321cbe6032ed99
출처 데이터셋
uspto-grants-2013_08
특허 번호
US08507470B2

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