Sodium Dithionite → 2-Amino-N-[5-(3,5-difluoro-benzyl)-1H-indazol-3-yl]-4-piperidin-1-ylmethyl benzamide

HRID 2068796노트

반응식

HRID 2068796 반응식
[F:1][C:2]1[CH:3]=[C:4]([CH:34]=[C:35]([F:37])[CH:36]=1)[CH2:5][C:6]1[CH:7]=[C:8]2[C:12](=[CH:13][CH:14]=1)[NH:11][N:10]=[C:9]2[NH:15][C:16](=[O:33])[C:17]1[CH:22]=[CH:21][C:20]([CH2:23][N:24]2[CH2:29][CH2:28][CH2:27][CH2:26][CH2:25]2)=[CH:19][C:18]=1[N+:30]([O-])=O.[O-]S(S([O-])=O)=O.[Na+].[Na+]>C(Cl)Cl.[N+](CCCC)(CCCC)(CCCC)CCCC.[Cl-].O>[NH2:30][C:18]1[CH:19]=[C:20]([CH2:23][N:24]2[CH2:25][CH2:26][CH2:27][CH2:28][CH2:29]2)[CH:21]=[CH:22][C:17]=1[C:16]([NH:15][C:9]1[C:8]2[C:12](=[CH:13][CH:14]=[C:6]([CH2:5][C:4]3[CH:34]=[C:35]([F:37])[CH:36]=[C:2]([F:1])[CH:3]=3)[CH:7]=2)[NH:11][N:10]=1)=[O:33]

참가 물질

6

반응물 2

HCID 24489Sodium DithioniteHCID 68672122N-[5-(3,5-Difluoro-benzyl)-1H-indazol-3-yl]-2-nitro-4-piperidin-1-ylmethyl-benzamide

생성물 1

HCID 686724042-Amino-N-[5-(3,5-difluoro-benzyl)-1H-indazol-3-yl]-4-piperidin-1-ylmethyl benzamide수율 103.3%

시약·촉매·용매 3

HCID 70681Tetrabutylammonium Chloride촉매HCID 962Water용매HCID 6344Dichloromethane용매

실험 절차

N-[5-(3,5-Difluoro-benzyl)-1H-indazol-3-yl]-2-nitro-4-piperidin-1-ylmethyl-benzamide (255 mg, 0.505 mmol) was suspended in DCM (7 mL) and treated with nBu4NCl (95 mg, 0.343 mmol). Na2S2O4 (659 mg, 3.029 mmol) in water (3.4 mL) was added drop-wise, with stirring. After 2 hours, the volatiles were removed by evaporation, a solid was filtered from the aqueous phase and dried under vacuum. The solid was treated with 4N HCl in dioxane (12 mL) and the solvent was then removed by evaporation. The solid was dissolved in DCM (100 mL), washed with aqueous K2CO3 and then with brine. After drying over sodium sulphate and removal of the solvent, 248 mg of title compound were obtained in more than quantitative yield. The crude was employed in the following step with no further purification.

후처리

  1. customthe volatiles were removed by evaporation
  2. filtrationa solid was filtered from the aqueous phase
  3. customdried under vacuum
  4. additionThe solid was treated with 4N HCl in dioxane (12 mL)
  5. customthe solvent was then removed by evaporation
  6. dissolutionThe solid was dissolved in DCM (100 mL)
  7. washwashed with aqueous K2CO3
  8. dry with materialAfter drying over sodium sulphate and removal of the solvent

출처 및 근거

ORD 기록
ord-6d502394243448dfa78a4c67fab95bf7
출처 데이터셋
uspto-grants-2012_10
특허 번호
US08299057B2

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