[CH3:1][O:2][C:3]1[CH:40]=[CH:39][C:6]([CH2:7][O:8][C@@H:9]2[C@@H:17]([CH:18]=[CH2:19])[O:16][C@H:15]3[C@H:11]([N:12]=[C:13]([N:20]([CH3:28])[C:21](=[O:27])[O:22][C:23]([CH3:26])([CH3:25])[CH3:24])[S:14]3)[C@H:10]2[O:29][CH2:30][C:31]2[CH:36]=[CH:35][C:34]([O:37][CH3:38])=[CH:33][CH:32]=2)=[CH:5][CH:4]=1>[Ni].C(O)C>[CH2:18]([C@H:17]1[O:16][C@H:15]2[C@H:11]([N:12]=[C:13]([N:20]([CH3:28])[C:21](=[O:27])[O:22][C:23]([CH3:26])([CH3:24])[CH3:25])[S:14]2)[CH:10]([O:29][CH2:30][C:31]2[CH:36]=[CH:35][C:34]([O:37][CH3:38])=[CH:33][CH:32]=2)[C@@H:9]1[O:8][CH2:7][C:6]1[CH:39]=[CH:40][C:3]([O:2][CH3:1])=[CH:4][CH:5]=1)[CH3:19]A solution of above crude compound 45 (220 mg, purity 50%) was dissolved into ethanol (15 mL) and treated with Ranney Ni (100 mg) under H2 atmosphere overnight at room temperature. After filtration, the organic solution was concentrated to give crude compound 46 (200 mg, purity 48% by LC-MS), which was used in the next step without further purification. (ES, m/z): [M+H]+ 573.0.
Wird geladen…