Ammonium Hydroxide → Dabrafenib Hydroxy

HRID 1671227ノート

反応式

HRID 1671227 の反応式
Cl[C:2]1[N:7]=[C:6]([C:8]2[S:12][C:11]([C:13]([CH3:17])([CH3:16])[CH2:14][OH:15])=[N:10][C:9]=2[C:18]2[C:19]([F:36])=[C:20]([NH:24][S:25]([C:28]3[C:33]([F:34])=[CH:32][CH:31]=[CH:30][C:29]=3[F:35])(=[O:27])=[O:26])[CH:21]=[CH:22][CH:23]=2)[CH:5]=[CH:4][N:3]=1.[OH-].[NH4+:38]>O.C(OCC)(=O)C>[NH2:38][C:2]1[N:7]=[C:6]([C:8]2[S:12][C:11]([C:13]([CH3:17])([CH3:16])[CH2:14][OH:15])=[N:10][C:9]=2[C:18]2[C:19]([F:36])=[C:20]([NH:24][S:25]([C:28]3[C:33]([F:34])=[CH:32][CH:31]=[CH:30][C:29]=3[F:35])(=[O:27])=[O:26])[CH:21]=[CH:22][CH:23]=2)[CH:5]=[CH:4][N:3]=1

参加物

5

反応物 2

HCID 14923Ammonium HydroxideHCID 57989895HCID 57989895、化合物

生成物 1

HCID 57989740Dabrafenib Hydroxy収率 81%

試薬・触媒・溶媒 2

HCID 962Water溶媒HCID 8857Ethyl Acetate溶媒2 回

実験手順

N-{3-[5-(2-chloro-4-pyrimidinyl)-2-(2-hydroxy-1,1-dimethylethyl)-1,3-thiazol-4-yl]-2-fluorophenyl}-2,6-difluorobenzenesulfonamide (450 mg, 0.811 mmol) and saturated aqueous ammonium hydroxide (6.0 mL) were heated in a microwave reactor to 90° C. for 90 minutes. The reaction mixture was diluted with water, solution layered with ethyl acetate and pH of the mixture adjusted to 7 giving a gummy residue. The liquors were decanted and set aside; the gum was dissolved in mixture of warm ethyl acetate, dichloromethane and methanol and the solution added to the earlier liquors. The pH of this mixture was re-adjusted to 7.0. Organic phase was separated, dried (MgSO4), filtered and evaporated to give an orange colored foam which was dissolved in ethyl acetate (5 mL). Drop-wise addition of this solution to rapidly stirring hexanes (100 mL) gave a creamy white suspension which was filtered, filter pad washed with fresh hexanes, then air-dried to afford the title compound as a light yellow solid (370 mg, 81% yield). 1H NMR (400 MHz, DMSO-d6) d ppm 10.88 (s, 1H) 7.97 (d, J=5.05 Hz, 1H) 7.64-7.77 (m, 1H) 7.40-7.48 (m, 1H) 7.33-7.39 (m, 1H) 7.18-7.32 (m, 4H) 6.75 (s, 2H) 5.84 (d, J=5.05 Hz, 1H) 5.09 (t, J=5.43 Hz, 1H) 3.51 (d, J=5.31 Hz, 2H) 1.33 (s, 6H). MS (ESI): 536.0 [M+H]+.

後処理

  1. customThe liquors were decanted
  2. dissolutionthe gum was dissolved in mixture of warm ethyl acetate, dichloromethane and methanol
  3. additionthe solution added to the earlier liquors
  4. customOrganic phase was separated
  5. dry with materialdried (MgSO4)
  6. filtrationfiltered
  7. customevaporated
  8. customto give an orange colored foam which
  9. customgave a creamy white suspension which
  10. filtrationwas filtered
  11. filtrationfilter pad
  12. washwashed with fresh hexanes
  13. customair-dried

出典と根拠

ORDレコード
ord-6b0f34fa65bf45b2b034298968c7123f
出典データセット
uspto-grants-2011_08
特許番号
US07994185B2

反応ノート

読み込み中…