Diisopropylethylamine → (2S,5S)-2-oxo-2-(8-oxo-8,9,10,11-tetrahydro-5H-dibenzo [c,g]chromen-3-yl)ethyl 1-((S)-2-(methoxycarbonylamino)-3-methylbutanoyl)-5-methylpyrrolidine-2-carboxylate

HRID 1412960노트

반응식

HRID 1412960 반응식
Br[CH2:2][C:3]([C:5]1[CH:6]=[CH:7][C:8]2[C:17]3[CH:16]=[C:15]4[CH2:18][CH2:19][CH2:20][C:21](=[O:22])[C:14]4=[CH:13][C:12]=3[O:11][CH2:10][C:9]=2[CH:23]=1)=[O:4].[CH3:24][O:25][C:26]([NH:28][C@@H:29]([CH:41]([CH3:43])[CH3:42])[C:30]([N:32]1[C@@H:36]([CH3:37])[CH2:35][CH2:34][C@H:33]1[C:38]([OH:40])=[O:39])=[O:31])=[O:27].CCN(C(C)C)C(C)C>CC#N.CCOC(C)=O>[CH3:24][O:25][C:26]([NH:28][C@@H:29]([CH:41]([CH3:43])[CH3:42])[C:30]([N:32]1[C@@H:36]([CH3:37])[CH2:35][CH2:34][C@H:33]1[C:38]([O:40][CH2:2][C:3](=[O:4])[C:5]1[CH:6]=[CH:7][C:8]2[C:17]3[CH:16]=[C:15]4[CH2:18][CH2:19][CH2:20][C:21](=[O:22])[C:14]4=[CH:13][C:12]=3[O:11][CH2:10][C:9]=2[CH:23]=1)=[O:39])=[O:31])=[O:27]

참가 물질

6

반응물 3

HCID 81531DiisopropylethylamineHCID 67412687L-Proline, N-(methoxycarbonyl)-L-valyl-5-methyl-, (5S)-HCID 866883423-(2-bromoacetyl)-10,11-dihydro-5H-dibenzo[c,g]chromen-8(9H)-one

생성물 1

HCID 69672293(2S,5S)-2-oxo-2-(8-oxo-8,9,10,11-tetrahydro-5H-dibenzo [c,g]chromen-3-yl)ethyl 1-((S)-2-(methoxycarbonylamino)-3-methylbutanoyl)-5-methylpyrrolidine-2-carboxylate수율 99.6%

시약·촉매·용매 2

HCID 6342Acetonitrile용매HCID 8857Ethyl Acetate용매

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온도
60 °C

실험 절차

To a solution of 3-(2-bromoacetyl)-10,11-dihydro-5H-dibenzo[c,g]chromen-8(9H)-one (750 mg, 2.02 mmol) in MeCN (20 mL) was added (2S,5S)-1-((S)-2-(methoxycarbonylamino)-3-methylbutanoyl)-5-methylpyrrolidine-2-carboxylic acid (600 mg, 2.09 mmol) and DIPEA (0.35 mL, 2.02 mmol) and the solution was heated to 60° C. After stirring for 4 h, the solution was cooled to rt, and diluted with EtOAc and washed successively with saturated aqueous NaHCO3 and brine. The organics were dried over MgSO4, filtered and concentrated under reduced pressure. The crude residue was purified by silica column chromatography (40% to 80% EtOAc/hexanes) to afford (2S,5S)-2-oxo-2-(8-oxo-8,9,10,11-tetrahydro-5H-dibenzo[c,g]chromen-3-yl)ethyl 1-((S)-2-(methoxycarbonylamino)-3-methylbutanoyl)-5-methylpyrrolidine-2-carboxylate (1.16 g, quant.).

후처리

  1. temperaturethe solution was cooled to rt
  2. washwashed successively with saturated aqueous NaHCO3 and brine
  3. dry with materialThe organics were dried over MgSO4
  4. filtrationfiltered
  5. concentrationconcentrated under reduced pressure
  6. customThe crude residue was purified by silica column chromatography (40% to 80% EtOAc/hexanes)

출처 및 근거

ORD 기록
ord-488b9aa5f46e4761bf8adacc9c45e9c0
출처 데이터셋
uspto-grants-2014_12
특허 번호
US08921341B2

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