1H-1,2,4-Triazole → tert-butyl (1R,2S,3S,5R)-5-(3-aminopyridin-4-yl)-3-methyl-2-(1H-1,2,4-triazol-1-yl)cyclohexylcarbamate

HRID 879181

반응식

HRID 879181 반응식
CS(O[C@@H:6]1[C@@H:11]([CH3:12])[CH2:10][C@@H:9]([C:13]2[CH:18]=[CH:17][N:16]=[CH:15][C:14]=2[NH:19]C(OC(C)(C)C)=O)[CH2:8][C@H:7]1[NH:27][C:28]([O:30][C:31]([CH3:34])([CH3:33])[CH3:32])=[O:29])(=O)=O.[NH:35]1[CH:39]=[N:38][CH:37]=[N:36]1.C([O-])([O-])=O.[Cs+].[Cs+]>CN(C=O)C>[NH2:19][C:14]1[CH:15]=[N:16][CH:17]=[CH:18][C:13]=1[C@H:9]1[CH2:8][C@@H:7]([NH:27][C:28](=[O:29])[O:30][C:31]([CH3:32])([CH3:33])[CH3:34])[C@@H:6]([N:35]2[CH:39]=[N:38][CH:37]=[N:36]2)[C@@H:11]([CH3:12])[CH2:10]1.[NH2:19][C:14]1[CH:15]=[N:16][CH:17]=[CH:18][C:13]=1[C@@H:9]1[CH2:8][C@H:7]([NH:27][C:28](=[O:29])[O:30][C:31]([CH3:32])([CH3:33])[CH3:34])[C@H:6]([N:35]2[CH:39]=[N:38][CH:37]=[N:36]2)[C@H:11]([CH3:12])[CH2:10]1

참가 물질

6

반응물 3

HCID 92571H-1,2,4-TriazoleHCID 10796Cesium carbonateHCID 86705223(1R,2R,4R,6S)-2-(tert-butoxycarbonylamino)-4-(3-(tert-butoxycarbonylamino)pyridin-4-yl)-6-methylcyclohexyl methanesulfonate

생성물 2

HCID 86705225tert-butyl (1R,2S,3S,5R)-5-(3-aminopyridin-4-yl)-3-methyl-2-(1H-1,2,4-triazol-1-yl)cyclohexylcarbamate수율 19%HCID 86705226tert-butyl (1S,2R,3R,5S)-5-(3-aminopyridin-4-yl)-3-methyl-2-(1H-1,2,4-triazol-1-yl)cyclohexylcarbamate수율 19%

시약·촉매·용매 1

HCID 6228Dimethylformamide용매

실험 절차

A solution of (+/−)-(1R,2R,4R,6S)-2-(tert-butoxycarbonylamino)-4-(3-(tert-butoxycarbonylamino)pyridin-4-yl)-6-methylcyclohexyl methanesulfonate (1.0 equiv.), 1H-1,2,4-triazole (3.0 equiv.) and Cs2CO3 (3.0 equiv.) in DMF (0.15 M) was stirred at 80° C. for 5 hrs. The volatiles were removed in vacuo and the residue was partitioned between EtOAc and H2O. The organic layer was washed with Na2CO3(sat.), NaCl(sat.), dried over MgSO4, filtered, concentrated and purified by RP HPLC, followed by free basing by partitioning between an equal volume of EtOAc and Na2CO3, separating, washing with NaCl(sat.), drying over MgSO4, filtering, concentrating. Purification was completed via SFC (20% MeOH, 100 mL/min, AD column) to yield tert-butyl (1R,2S,3S,5R)-5-(3-aminopyridin-4-yl)-3-methyl-2-(1H-1,2,4-triazol-1-yl)cyclohexylcarbamate (19% yield, 99% ee) and tert-butyl (1S,2R,3R,5S)-5-(3-aminopyridin-4-yl)-3-methyl-2-(1H-1,2,4-triazol-1-yl)cyclohexylcarbamate (19% yield, 99% ee). LC/MS (m/z)=373.3 (MH+), Rt=0.54 min.

후처리

  1. customThe volatiles were removed in vacuo
  2. customthe residue was partitioned between EtOAc and H2O
  3. washThe organic layer was washed with Na2CO3(sat.), NaCl(sat.)
  4. dry with materialdried over MgSO4
  5. filtrationfiltered
  6. concentrationconcentrated
  7. custompurified by RP HPLC
  8. customby partitioning between an equal volume of EtOAc and Na2CO3
  9. customseparating
  10. washwashing with NaCl(sat.)
  11. dry with materialdrying over MgSO4
  12. filtrationfiltering
  13. concentrationconcentrating
  14. customPurification

출처 및 근거

ORD 기록
ord-50e7d7eefca641cbb84f14203f4f7812
출처 데이터셋
uspto-grants-2015_03
특허 번호
US08987457B2

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