Sodium Carbonate → {2-[7-(4-carbamoyl-phenyl)-1H-indol-3-yl]-1,1-dimethyl-ethyl}-carbamic acid tert-butyl ester

HRID 8091

반응식

HRID 8091 반응식
Br[C:2]1[CH:10]=[CH:9][C:5]([C:6]([NH2:8])=[O:7])=[CH:4][CH:3]=1.B1(B2OC(C)(C)C(C)(C)O2)OC(C)(C)C(C)(C)O1.C([O-])(=O)C.[K+].[C:34]([O:38][C:39]([NH:41][C:42]([CH3:62])([CH3:61])[CH2:43][C:44]1[C:52]2[C:47](=[C:48](OS(C(F)(F)F)(=O)=O)[CH:49]=[CH:50][CH:51]=2)[NH:46][CH:45]=1)=[O:40])([CH3:37])([CH3:36])[CH3:35].C(=O)([O-])[O-].[Na+].[Na+]>CS(C)=O.[Cl-].[Na+].O.C(OCC)(=O)C>[C:34]([O:38][C:39](=[O:40])[NH:41][C:42]([CH3:62])([CH3:61])[CH2:43][C:44]1[C:52]2[C:47](=[C:48]([C:2]3[CH:10]=[CH:9][C:5]([C:6](=[O:7])[NH2:8])=[CH:4][CH:3]=3)[CH:49]=[CH:50][CH:51]=2)[NH:46][CH:45]=1)([CH3:37])([CH3:35])[CH3:36]

참가 물질

9

반응물 5

HCID 10340Sodium CarbonateHCID 696834-BromobenzamideHCID 517044Potassium AcetateHCID 2733548Bis(pinacolato)diboraneHCID 86595245trifluoro-methanesulfonic acid 3-(2-tert-butoxycarbonylamino-2-methyl-propyl)-1H-indol-7-yl ester

생성물 1

HCID 69517685{2-[7-(4-carbamoyl-phenyl)-1H-indol-3-yl]-1,1-dimethyl-ethyl}-carbamic acid tert-butyl ester수율 58.5%

시약·촉매·용매 3

HCID 679Dimethyl Sulfoxide용매HCID 8857Ethyl Acetate용매HCID 57417360Sodium chloride; water용매

반응 조건

온도
20 °C

실험 절차

A solution of 4-bromobenzamide (150 mg, 0.75 mmol), bis(pinacolato)diboron (209 mg, 0.825 mmol), potassium acetate (0.221 g, 2.25 mmol) and {1,1′-bis(diphenylphosphino)-ferrocene}dichloropalladium dichloromethane complex (18 mg, 0.0225 mmol) in dimethylsulfoxide (5 mL) is heated to 80° C. for two hours. The mixture is cooled to 20° C. and trifluoro-methanesulfonic acid 3-(2-tert-butoxycarbonylamino-2-methyl-propyl)-1H-indol-7-yl ester (262 mg, 0.600 mmol), {1,1′-bis(diphenylphosphino)-ferrocene}dichloropalladium dichloromethane complex (18 mg, 0.0225 mmol) and sodium carbonate (1.9 mL, 2M, 3.75 mmol) are added. The mixture is heated to 80° C. overnight. The mixture is diluted with brine and ethyl acetate. The organic fraction is washed seven times with brine, then dried over anhydrous sodium sulfate, filtered and evaporated. The residue is purified using silica gel chromatography (dichloromethane/10% methanol, 0.7M ammonia in dichloromethane gradient elution) to give 143 mg of {2-[7-(4-carbamoyl-phenyl)-1H-indol-3-yl]-1,1-dimethyl-ethyl}-carbamic acid tert-butyl ester (58%). FDMS m/e=408 (M++1).

후처리

  1. temperatureThe mixture is heated to 80° C. overnight
  2. washThe organic fraction is washed seven times with brine
  3. dry with materialdried over anhydrous sodium sulfate
  4. filtrationfiltered
  5. customevaporated
  6. customThe residue is purified
  7. washsilica gel chromatography (dichloromethane/10% methanol, 0.7M ammonia in dichloromethane gradient elution)

출처 및 근거

ORD 기록
ord-32cf1dfce18849a1889085ab34daa5ed
출처 데이터셋
uspto-grants-2006_08
특허 번호
US07087635B2

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