Chlorosuccinimide → (S)-tert-butyl (1-((9-chloro-2,6-dimethyl-5-oxo-5,6-dihydrobenzo[c][2,7]naphthyridin-8-yl)oxy)-4-methylpentan-2-yl)carbamate
反応式
[CH3:1][C:2]1[CH:3]=[C:4]2[C:9](=[CH:10][N:11]=1)[C:8](=[O:12])[N:7]([CH3:13])[C:6]1[CH:14]=[C:15]([O:18][CH2:19][C@@H:20]([NH:25][C:26](=[O:32])[O:27][C:28]([CH3:31])([CH3:30])[CH3:29])[CH2:21][CH:22]([CH3:24])[CH3:23])[CH:16]=[CH:17][C:5]2=1.C1C(=O)N([Cl:40])C(=O)C1>>[Cl:40][C:16]1[C:15]([O:18][CH2:19][C@@H:20]([NH:25][C:26](=[O:32])[O:27][C:28]([CH3:30])([CH3:29])[CH3:31])[CH2:21][CH:22]([CH3:24])[CH3:23])=[CH:14][C:6]2[N:7]([CH3:13])[C:8](=[O:12])[C:9]3[C:4]([C:5]=2[CH:17]=1)=[CH:3][C:2]([CH3:1])=[N:11][CH:10]=3参加物
3
反応物 2
生成物 1
実験手順
(S)-tert-butyl (1-((2,6-dimethyl-5-oxo-5,6-dihydrobenzo[c][2,7]naphthyridin-8-yl)oxy)-4-methylpentan-2-yl)carbamate (0.05 g, 0.114 mmol), prepared as described in Example 67, Part F, was subjected to chlorination using NCS (0.018 g, 0.137 mmol), using the procedure described in Example 20, Part A, to give (S)-tert-butyl (1-((9-chloro-2,6-dimethyl-5-oxo-5,6-dihydrobenzo[c][2,7]naphthyridin-8-yl)oxy)-4-methylpentan-2-yl)carbamate (50 mg, 0.052 mmol, 45% yield) as colorless oil. LC/MS (ESI) m/e 474.7 [(M+H)+, calcd for C25H32ClN3O4 474.2]; LC/MS retention time (method H): tR=0.94 min.