1,2-Dichloroethane → tert-butyl (1R,2R,3S,5R)-5-(3-(6-(2,6-difluorophenyl)-5-fluoropicolinamido)pyridin-4-yl)-2-hydroxy-3-methylcyclohexylcarbamate

HRID 705252

반응식

HRID 705252 반응식
C([O:4][C@@H:5]1[C@@H:10]([CH3:11])[CH2:9][C@@H:8]([C:12]2[CH:17]=[CH:16][N:15]=[CH:14][C:13]=2[NH2:18])[CH2:7][C@H:6]1[NH:19][C:20]([O:22][C:23]([CH3:26])([CH3:25])[CH3:24])=[O:21])(=O)C.[F:27][C:28]1[CH:33]=[CH:32][CH:31]=[C:30]([F:34])[C:29]=1[C:35]1[N:40]=[C:39]([C:41](O)=[O:42])[CH:38]=[CH:37][C:36]=1[F:44].C(Cl)CCl.C([O-])([O-])=O.[Cs+].[Cs+]>CN(C=O)C.C(O)C.CCOC(C)=O.CCO>[F:27][C:28]1[CH:33]=[CH:32][CH:31]=[C:30]([F:34])[C:29]=1[C:35]1[N:40]=[C:39]([C:41]([NH:18][C:13]2[CH:14]=[N:15][CH:16]=[CH:17][C:12]=2[C@H:8]2[CH2:7][C@@H:6]([NH:19][C:20](=[O:21])[O:22][C:23]([CH3:26])([CH3:25])[CH3:24])[C@H:5]([OH:4])[C@@H:10]([CH3:11])[CH2:9]2)=[O:42])[CH:38]=[CH:37][C:36]=1[F:44]

참가 물질

8

반응물 4

HCID 111,2-DichloroethaneHCID 10796Cesium carbonateHCID 592265526-(2,6-Difluorophenyl)-5-fluoropicolinic acidHCID 68555677(1R,2R,4R,6S)-4-(3-aminopyridin-4-yl)-2-((tert-butoxycarbonyl)amino)-6-methylcyclohexyl acetate

생성물 1

HCID 86639738tert-butyl (1R,2R,3S,5R)-5-(3-(6-(2,6-difluorophenyl)-5-fluoropicolinamido)pyridin-4-yl)-2-hydroxy-3-methylcyclohexylcarbamate수율 99%

시약·촉매·용매 3

HCID 702Ethanol용매HCID 8857Ethyl Acetate용매HCID 19794673N,N-dimethylformamide ethanol용매

실험 절차

To a solution of (1R,2R,4R,6S)-4-(3-aminopyridin-4-yl)-2-(tert-butoxycarbonylamino)-6-methylcyclohexyl acetate (1.0 equiv.) in DMF/Ethanol (1/5, 0.05 M) was added 6-(2,6-difluorophenyl)-5-fluoropicolinic acid (1.3 equiv.), aza-HOBt (1.3 equiv.) and EDC (1.3 equiv.). The mixture was stirred at rt for 6 hrs. The solution was diluted with EtOAc, washed with H2O, 1N NaOH, NaCl (sat.), dried over MgSO4, filtered and concentrated to yield crude protected amide. The material was dissolved in EtOH (0.45 M), Cs2CO3 (1.0 equiv.) was added and the solution was submerged in a 60° C. oil bath and stirred for 90 mins. The volatiles were removed in vacuo; the residue was partitioned between with EtOAc and H2O. The organic layer was washed with NaCl(sat), dried over MgSO4, filtered, concentrated and pumped on to yield tert-butyl (1R,2R,3S,5R)-5-(3-(6-(2,6-difluorophenyl)-5-fluoropicolinamido)pyridin-4-yl)-2-hydroxy-3-methylcyclohexylcarbamate in 99% yield. LC/MS (m/z)=557.3 (MH+), Rt=0.80 min.

후처리

  1. washwashed with H2O, 1N NaOH, NaCl (sat.)
  2. dry with materialdried over MgSO4
  3. filtrationfiltered
  4. concentrationconcentrated
  5. customto yield crude protected amide
  6. customwas submerged in a 60° C.
  7. stirringstirred for 90 mins
  8. customThe volatiles were removed in vacuo
  9. customthe residue was partitioned between with EtOAc and H2O
  10. washThe organic layer was washed with NaCl(sat)
  11. dry with materialdried over MgSO4
  12. filtrationfiltered
  13. concentrationconcentrated

출처 및 근거

ORD 기록
ord-597935584a404d138d4c9ad5befc024a
출처 데이터셋
uspto-grants-2015_11
특허 번호
US09173883B2

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