Cyclopentylamine → 5,6-Dichloro-1-(5-deoxy-beta-D-ribofuranosyl)-N-(cyclopentyl)-1H-benzimidazol-2-amine
반응식
[CH:1]1([NH2:6])[CH2:5][CH2:4][CH2:3][CH2:2]1.Br[C:8]1[N:12]([C@@H:13]2[O:19][C@H:18]([CH3:20])[C@@H:16]([OH:17])[C@H:14]2[OH:15])[C:11]2[CH:21]=[C:22]([Cl:26])[C:23]([Cl:25])=[CH:24][C:10]=2[N:9]=1>C(Cl)Cl>[Cl:25][C:23]1[C:22]([Cl:26])=[CH:21][C:11]2[N:12]([C@@H:13]3[O:19][C@H:18]([CH3:20])[C@@H:16]([OH:17])[C@H:14]3[OH:15])[C:8]([NH:6][CH:1]3[CH2:5][CH2:4][CH2:3][CH2:2]3)=[N:9][C:10]=2[CH:24]=1참가 물질
4
실험 절차
Following General Procedure V, cyclopentyl amine (Aldrich, 5 mL, 50.68 mmol), and 2-bromo-5,6-dichloro-1-(5-deoxy-beta-D-ribofuranosyl)-1H-benzimidazole (250 mg, 0.65 mmol) reacted for 92 h. Purification on a silica gel column with 1:15 methanol:CH2Cl2 gave the title compound (238 mg, 0.62 mmol, 95%); MS (EI): m/z (rel. intensity) 386 (0.20, M+); 1H NMR (DMSO-d6) δ7.42 (s, 1H, Ar—H), 7.33 (s, 1H, Ar—H), 6.68 (d, 1H, NH, J=6.7 Hz), 5.71 (d, 1H, CH, J=6.8 Hz), 5.29 (m, 2H, overlapping OH), 4.32 (m, 1H. CH), 4.16 (m, 1H, CH), 3.92 (m, 1H, CH), 3.81 (m, 1H, CH), 1.95 (m, 2H, CH2), 1.70 (m, 2H, CH2), 1.56 (m, 4H, CH2), 1.38 (d, 3H, CH3, J=6.4 Hz).