Sodium Carbonate → N2-(3-(tert-butyldiphenylsilanoxy)-2,2-dimethylpropyl)-6-chloro-7-(3-fluorophenyl)-3,4-dihydropyrrolo[1,2-a]pyrazine-2,8(1H)-dicarboxamide

HRID 589840노트

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HRID 589840 반응식
[Cl:1][C:2]1[N:6]2[CH2:7][CH2:8][NH:9][CH2:10][C:5]2=[C:4]([C:11]([NH2:13])=[O:12])[C:3]=1[C:14]1[CH:19]=[CH:18][CH:17]=[C:16]([F:20])[CH:15]=1.[O:21]([CH2:39][C:40]([CH3:56])([CH3:55])[CH2:41][NH:42][C:43](=O)[O:44]C1C=CC([N+]([O-])=O)=CC=1)[Si:22]([C:35]([CH3:38])([CH3:37])[CH3:36])([C:29]1[CH:34]=[CH:33][CH:32]=[CH:31][CH:30]=1)[C:23]1[CH:28]=[CH:27][CH:26]=[CH:25][CH:24]=1.C(=O)([O-])[O-].[Na+].[Na+].[OH-].[Na+]>C(#N)C>[O:21]([CH2:39][C:40]([CH3:56])([CH3:55])[CH2:41][NH:42][C:43]([N:9]1[CH2:8][CH2:7][N:6]2[C:2]([Cl:1])=[C:3]([C:14]3[CH:19]=[CH:18][CH:17]=[C:16]([F:20])[CH:15]=3)[C:4]([C:11]([NH2:13])=[O:12])=[C:5]2[CH2:10]1)=[O:44])[Si:22]([C:35]([CH3:38])([CH3:36])[CH3:37])([C:29]1[CH:30]=[CH:31][CH:32]=[CH:33][CH:34]=1)[C:23]1[CH:24]=[CH:25][CH:26]=[CH:27][CH:28]=1

참가 물질

6

반응물 4

HCID 10340Sodium CarbonateHCID 14798Sodium HydroxideHCID 665839426-Chloro-7-(3-fluorophenyl)-1,2,3,4-tetrahydropyrrolo[1,2-a]pyrazine-8-carboxamideHCID 665840014-Nitrophenyl 3-(tert-butyldiphenylsilanoxy)-2,2-dimethylpropylcarbamate

생성물 1

HCID 86680811N2-(3-(tert-butyldiphenylsilanoxy)-2,2-dimethylpropyl)-6-chloro-7-(3-fluorophenyl)-3,4-dihydropyrrolo[1,2-a]pyrazine-2,8(1H)-dicarboxamide

시약·촉매·용매 1

HCID 6342Acetonitrile용매

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온도
65 °C

실험 절차

A suspension of 0.250 (0.85 mmol) of 6-chloro-7-(3-fluorophenyl)-1,2,3,4-tetrahydropyrrolo[1,2-a]pyrazine-8-carboxamide, 0.518 g (1.02 mmol) of 4-nitrophenyl 3-(tert-butyldiphenylsilanoxy)-2,2-dimethylpropylcarbamate and 0.235 g (1.70 mmol) of sodium carbonate in 3 ml of acetonitrile is heated at 65° C. for 1 hour 30 minutes. After cooling, the mixture is poured into aqueous 1N sodium hydroxide solution and the product is extracted with dichloromethane. After drying over sodium sulfate and filtering, the solvent is evaporated off under reduced pressure and the residue is purified by chromatography on a column of silica gel, eluting with a mixture of 35 to 65% ethyl acetate in cyclohexane, to give 0.44 g of N2-(3-(tert-butyldiphenylsilanoxy)-2,2-dimethylpropyl)-6-chloro-7-(3-fluorophenyl)-3,4-dihydropyrrolo[1,2-a]pyrazine-2,8(1H)-dicarboxamide in the form of a pale yellow foam.

후처리

  1. temperatureAfter cooling
  2. extractionthe product is extracted with dichloromethane
  3. dry with materialAfter drying over sodium sulfate
  4. filtrationfiltering
  5. customthe solvent is evaporated off under reduced pressure
  6. customthe residue is purified by chromatography on a column of silica gel
  7. washeluting with a mixture of 35 to 65% ethyl acetate in cyclohexane

출처 및 근거

ORD 기록
ord-41ff6053d9064e0a930cc7f5b4d1bd8a
출처 데이터셋
uspto-grants-2016_01
특허 번호
US09233965B2

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