Methanesulfonyl chloride → (+/-)-(1S,2R,65)-2-((tert-butoxycarbonyl)amino)-6-methyl-4-(3-nitropyridin-4-yl)cyclohex-3-en-1-yl methanesulfonate

HRID 879193노트

반응식

HRID 879193 반응식
[OH:1][C@@H:2]1[C@H:7]([NH:8][C:9](=[O:15])[O:10][C:11]([CH3:14])([CH3:13])[CH3:12])[CH:6]=[C:5]([C:16]2[CH:21]=[CH:20][N:19]=[CH:18][C:17]=2[N+:22]([O-:24])=[O:23])[CH2:4][C@@H:3]1[CH3:25].[CH3:26][S:27](Cl)(=[O:29])=[O:28]>N1C=CC=CC=1>[CH3:26][S:27]([O:1][C@H:2]1[C@@H:3]([CH3:25])[CH2:4][C:5]([C:16]2[CH:21]=[CH:20][N:19]=[CH:18][C:17]=2[N+:22]([O-:24])=[O:23])=[CH:6][C@H:7]1[NH:8][C:9]([O:10][C:11]([CH3:12])([CH3:13])[CH3:14])=[O:15])(=[O:29])=[O:28]

참가 물질

4

반응물 2

HCID 31297Methanesulfonyl chlorideHCID 86705242(+/-)-Tert-butyl (1R,5S,6S)-6-hydroxy-5-methyl-3-(3-nitropyridin-4-yl)cyclohex-2-enylcarbamate

생성물 1

HCID 86705241(+/-)-(1S,2R,65)-2-((tert-butoxycarbonyl)amino)-6-methyl-4-(3-nitropyridin-4-yl)cyclohex-3-en-1-yl methanesulfonate수율 46%

시약·촉매·용매 1

HCID 1049Pyridine용매

실험 절차

To a solution of (+/−)-tert-butyl ((1R,5S,6S)-6-hydroxy-5-methyl-3-(3-nitropyridin-4-yl)cyclohex-2-en-1-yl)carbamate (1.0 equiv.) in pyridine (0.20 M) was added MsCl (5.0 equiv.). The capped solution was stirred for 5 minutes and then the homogeneous solution was left standing at rt for 16 hrs. The volatiles were removed in vacuo and the residue was partitioned between EtOAc and H2O. The organic layer was washed with 10% CuSO4, H2O, Na2CO3(sat.), NaCl(sat.), dried over MgSO4, filtered, concentrated and purified by ISCO SiO2 chromatography to yield (+/−)-(1S,2R,6S)-2-((tert-butoxycarbonyl)amino)-6-methyl-4-(3-nitropyridin-4-yl)cyclohex-3-en-1-yl methanesulfonate in 46% yield. LC/MS (m/z)=428.2 (MH+), Rt=0.89 min.

후처리

  1. waitthe homogeneous solution was left
  2. waitstanding at rt for 16 hrs
  3. customThe volatiles were removed in vacuo
  4. customthe residue was partitioned between EtOAc and H2O
  5. washThe organic layer was washed with 10% CuSO4, H2O, Na2CO3(sat.), NaCl(sat.)
  6. dry with materialdried over MgSO4
  7. filtrationfiltered
  8. concentrationconcentrated
  9. custompurified by ISCO SiO2 chromatography

출처 및 근거

ORD 기록
ord-ed30ecc2dfa14eb48b3e9c9807311fd9
출처 데이터셋
uspto-grants-2015_03
특허 번호
US08987457B2

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