Trifluoroacetic acid → 3-Benzyloxy-8,9,10,11-tetrahydropyrazino[1',2':1,2]imidazo[4,5-c]quinolin-6-amine
反応式
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]=1参加物
実験手順
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.
後処理
- 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
出典と根拠
- ORDレコード
- ord-de218d13b4e746c09b3d46dedd9e263f
- 出典データセット
- uspto-grants-2011_02
- 特許番号
- US07888349B2
反応ノート
読み込み中…