Trifluoroacetic acid → 3-Benzyloxy-8,9,10,11-tetrahydropyrazino[1',2':1,2]imidazo[4,5-c]quinolin-6-amine
반응식
FC(F)(F)C(O)=O.[NH2:8][C:9]1[C:18]2[N:19]=[C:20]3[CH2:25][N:24](C(OC(C)(C)C)=O)[CH2:23][CH2:22][N:21]3[C:17]=2[C:16]2[C:11](=[CH:12][C:13]([O:33][CH2:34][C:35]3[CH:40]=[CH:39][CH:38]=[CH:37][CH:36]=3)=[CH:14][CH:15]=2)[N:10]=1>ClCCl>[CH2:34]([O:33][C:13]1[CH:12]=[C:11]2[C:16]([C:17]3[N:21]4[CH2:22][CH2:23][NH:24][CH2:25][C:20]4=[N:19][C:18]=3[C:9]([NH2:8])=[N:10]2)=[CH:15][CH:14]=1)[C:35]1[CH:36]=[CH:37][CH:38]=[CH:39][CH:40]=1참가 물질
실험 절차
Trifluoroacetic acid (10 mL of a 10% solution in dichloromethane) was added to tert-butyl 6-amino-3-benzyloxy-10,11-dihydropyrazino[1′,2′:1,2]imidazo[4,5-c]quinoline-9(8H)-carboxylate (0.550 g, 1.23 mmol), and the reaction was stirred at ambient temperature overnight. The solvent was removed under reduced pressure, and the residue was treated with hydrogen chloride (4 N in 1,4-dioxane). The solvent was removed under reduced pressure, and the residue was dissolved in methanol. Ammonia gas was bubbled through the resulting solution for 15 minutes, and then the solvent was removed under reduced pressure. The residue was dried overnight under vacuum to provide 3-benzyloxy-8,9,10,11-tetrahydropyrazino[1′,2′:1,2]imidazo[4,5-c]quinolin-6-amine in a crude mixture, which was used in the next step without purification.
후처리
- customThe solvent was removed under reduced pressure
- additionthe residue was treated with hydrogen chloride (4 N in 1,4-dioxane)
- customThe solvent was removed under reduced pressure
- dissolutionthe residue was dissolved in methanol
- customAmmonia gas was bubbled through the resulting solution for 15 minutes
- customthe solvent was removed under reduced pressure
- customThe residue was dried overnight under vacuum
출처 및 근거
- ORD 기록
- ord-de218d13b4e746c09b3d46dedd9e263f
- 출처 데이터셋
- uspto-grants-2011_02
- 특허 번호
- US07888349B2
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