Hydrochloric Acid → 2-(4'-Bromo-biphenyl-4-ylcarbamoyl)-pyrrolidine-1-carboxylic acid tert-butyl ester

HRID 1185771

반응식

HRID 1185771 반응식
C(O[C:6](=[O:21])[NH:7][C:8]1[CH:13]=[CH:12][C:11]([C:14]2[CH:19]=[CH:18][C:17]([Br:20])=[CH:16][CH:15]=2)=[CH:10][CH:9]=1)(C)(C)C.Cl.[N:23]1([C:31]([O:33][C:34]([CH3:37])([CH3:36])[CH3:35])=[O:32])[CH2:30][CH2:29][CH2:28][C@H:24]1C(O)=O.CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.CCN(C(C)C)C(C)C>CO.CN(C=O)C.C(OCC)(=O)C>[C:34]([O:33][C:31]([N:23]1[CH2:30][CH2:29][CH2:28][CH:24]1[C:6](=[O:21])[NH:7][C:8]1[CH:9]=[CH:10][C:11]([C:14]2[CH:15]=[CH:16][C:17]([Br:20])=[CH:18][CH:19]=2)=[CH:12][CH:13]=1)=[O:32])([CH3:37])([CH3:35])[CH3:36]

참가 물질

9

반응물 5

HCID 313Hydrochloric AcidHCID 81531DiisopropylethylamineHCID 850831,2-Pyrrolidinedicarboxylic acid, 1-(1,1-dimethylethyl) ester, (2S)-HCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 596105344-Bromo-4'-t-butoxycarbonylaminobiphenyl

생성물 1

HCID 666213242-(4'-Bromo-biphenyl-4-ylcarbamoyl)-pyrrolidine-1-carboxylic acid tert-butyl ester수율 95.2%

시약·촉매·용매 3

HCID 887Methanol용매HCID 6228Dimethylformamide용매HCID 8857Ethyl Acetate용매

반응 조건

온도
60 °C

실험 절차

(4′-Bromo-biphenyl-4-yl)-carbamic acid tert-butyl ester (407 mg, 1.17 mmol) was dissolved in methanol (10 mL) and concentrated HCl (2 mL) was added. The solution was stirred at 60° C. for 1 hour then concentrated. The crude residue was treated with Boc-Pro-OH (302 mg, 1.40 mmol) and HATU (578 mg, 1.52 mmol) and suspended in DMF (6 mL). DIPEA (1.02 mL, 5.85 mmol) was added and the reaction mixture was stirred at RT for 4 hours after which it was diluted with ethyl acetate (200 mL) and washed with water and brine. The organic phase was dried over magnesium sulfate and concentrated. The residue was purified by silica column chromatography (30% to 55% EtOAc/hexanes) to afford 2-(4′-Bromo-biphenyl-4-ylcarbamoyl)-pyrrolidine-1-carboxylic acid tert-butyl ester (496 mg, 95% over 2 steps).

후처리

  1. concentrationthen concentrated
  2. stirringthe reaction mixture was stirred at RT for 4 hours after which it
  3. washwashed with water and brine
  4. dry with materialThe organic phase was dried over magnesium sulfate
  5. concentrationconcentrated
  6. customThe residue was purified by silica column chromatography (30% to 55% EtOAc/hexanes)

출처 및 근거

ORD 기록
ord-a2d7e37ab62f41daa0c2ef44c364da68
출처 데이터셋
uspto-grants-2014_03
특허 번호
US08669234B2

연결된 노트

불러오는 중…