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Pyridine → methyl(E)-2-[[2-[2(R)-[1(S)-(tert-butoxycarbonyl)-4-phenyl-3-butenyl]-4-methylvaleryl]hydrazino]sulphonamido]acetate

HRID 651826
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HRID 651826 반응식
[C:1]([O:5][C:6]([C@H:8]([C@@H:18]([CH2:23][CH:24]([CH3:26])[CH3:25])[C:19]([NH:21][NH2:22])=[O:20])[CH2:9]/[CH:10]=[CH:11]/[C:12]1[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=1)=[O:7])([CH3:4])([CH3:3])[CH3:2].N1C=CC=CC=1.[CH3:33][O:34][C:35](=[O:42])[CH2:36][NH:37][S:38](Cl)(=[O:40])=[O:39]>ClCCl.C(OCC)(=O)C>[C:1]([O:5][C:6]([C@H:8]([C@@H:18]([CH2:23][CH:24]([CH3:26])[CH3:25])[C:19]([NH:21][NH:22][S:38]([NH:37][CH2:36][C:35]([O:34][CH3:33])=[O:42])(=[O:40])=[O:39])=[O:20])[CH2:9]/[CH:10]=[CH:11]/[C:12]1[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=1)=[O:7])([CH3:4])([CH3:3])[CH3:2]
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참가 물질

6

반응물 3

HCID 1049PyridineHCID 14363949Ethyl 2-((chlorosulfonyl)amino)acetateHCID 69709501(E)-2(R)-[1(S)-(tert-butoxycarbonyl)-4-phenyl-3-butenyl]-4-methylvalerohydrazide

생성물 1

HCID 20681577methyl(E)-2-[[2-[2(R)-[1(S)-(tert-butoxycarbonyl)-4-phenyl-3-butenyl]-4-methylvaleryl]hydrazino]sulphonamido]acetate수율 54.2%

시약·촉매·용매 2

HCID 6344
Dichloromethane
용매
2회
HCID 8857Ethyl Acetate용매

실험 절차

A solution of 1.08 g of (E)-2(R)-[1(S)-(tert-butoxycarbonyl)-4-phenyl-3-butenyl]-4-methylvalerohydrazide in 10 ml of dichloromethane was cooled to 0° C. under a nitrogen atmosphere and treated with 0.8 ml of pyridine and a solution of 1.5 g of N-(chlorosulphonyl)-glycine methyl ester in 5 ml of dichloromethane. The mixture was warmed to room temperature and stirred for 3 hours. The mixture was then diluted with ethyl acetate and washed with 2M aqueous hydrogen chloride and saturated aqueous sodium chloride. The organic layer was dried over anhydrous magnesium sulphate and evaporated and the residue was purified by flash column chromatography on silica gel using hexane/ethyl acetate (3:2) for the elution to give 0.831 g of methyl(E)-2-[[2-[2(R)-[1(S)-(tert-butoxycarbonyl)-4-phenyl-3-butenyl]-4-methylvaleryl]hydrazino]sulphonamido]acetate in the form of a solid.

후처리

  1. washwashed with 2M aqueous hydrogen chloride and saturated aqueous sodium chloride
  2. dry with materialThe organic layer was dried over anhydrous magnesium sulphate
  3. customevaporated
  4. customthe residue was purified by flash column chromatography on silica gel
  5. washfor the elution

출처 및 근거

ORD 기록
ord-57acf081124e431b929f1f1e9c0159f9
출처 데이터셋
uspto-grants-2001_08
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US06281363B1

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