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Triphenylphosphine → cis-1-(p-nitrobenzyloxycarbonyl)-4-acetylthio-L-proline p-methoxybenzyl ester

HRID 893163
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HRID 893163 반응식
[CH3:1][O:2][C:3]1[CH:31]=[CH:30][C:6]([CH2:7][O:8][C:9](=O)[C@@H:10]2[CH2:14][C@@H:13](O)[CH2:12][N:11]2[C:16]([O:18][CH2:19][C:20]2[CH:25]=[CH:24][C:23]([N+:26]([O-:28])=[O:27])=[CH:22][CH:21]=2)=[O:17])=[CH:5][CH:4]=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.N(C(OCC)=O)=NC([O:55][CH2:56][CH3:57])=O.C(O)(=[S:65])C>O1CCCC1>[CH3:1][O:2][C:3]1[CH:4]=[CH:5][C:6]([CH2:7][O:8][C:9](=[S:65])[C@@H:10]2[CH2:14][C@H:13]([C:56](=[O:55])[CH3:57])[CH2:12][N:11]2[C:16]([O:18][CH2:19][C:20]2[CH:21]=[CH:22][C:23]([N+:26]([O-:28])=[O:27])=[CH:24][CH:25]=2)=[O:17])=[CH:30][CH:31]=1
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

6

반응물 4

HCID 11776TriphenylphosphineHCID 220568ethyl N-ethoxycarbonyliminocarbamateHCID 13504318trans-1-(p-nitrobenzyloxycarbonyl)-4-hydroxy-L-proline p-methoxybenzyl esterHCID 178418634HCID 178418634, 화합물

생성물 1

HCID 86744002cis-1-(p-nitrobenzyloxycarbonyl)-4-acetylthio-L-proline p-methoxybenzyl ester

시약·촉매·용매 1

HCID 8028Tetrahydrofuran용매2회

실험 절차

8.6 g of trans-1-(p-nitrobenzyloxycarbonyl)-4-hydroxy-L-proline-p-methoxybenzyl ester and 7.86 g of triphenylphosphine were dissolved in 20 ml of dried tetrahydrofuran. To the resulting solution was added dropwise a solution of 5.22 g of diethyl azodicarboxylate in 5 ml of dried tetrahydrofuran under ice-cooling in a nitrogen stream, followed by stirring for 30 minutes at that temperature. Thereafter, 2.28 g of thioacetic acid was added thereto dropwise, and the mixture was stirred for 1 hour under ice-cooling and then at room temperature for 3 hours, followed by concentration. The residue was purified by silica gel column chromatography to obtain cis-1-(p-nitrobenzyloxycarbonyl)-4-acetylthio-L-proline p-methoxybenzyl ester.

후처리

  1. temperaturecooling in a nitrogen stream
  2. stirringdropwise, and the mixture was stirred for 1 hour under ice-
  3. temperaturecooling
  4. waitat room temperature for 3 hours
  5. concentrationfollowed by concentration
  6. customThe residue was purified by silica gel column chromatography

출처 및 근거

ORD 기록
ord-052dbf4120f24cb0a6050f5c1e36b00b
출처 데이터셋
uspto-grants-1992_06
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US05122604

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