Methyl 4-(3-bromopropyl)benzoate → 4-(3-{2-[3-(Tert-butyl-dimethyl-silanyloxy)-4-(4-fluoro-phenyl)-butyl]-5-oxo-pyrrolidin-1-yl}-propyl)-benzoic acid methyl ester
반응식
[C:1]([Si:5]([CH3:25])([CH3:24])[O:6][CH:7]([CH2:16][C:17]1[CH:22]=[CH:21][C:20]([F:23])=[CH:19][CH:18]=1)[CH2:8][CH2:9][CH:10]1[NH:14][C:13](=[O:15])[CH2:12][CH2:11]1)([CH3:4])([CH3:3])[CH3:2].[CH3:26][O:27][C:28](=[O:39])[C:29]1[CH:34]=[CH:33][C:32]([CH2:35][CH2:36][CH2:37]Br)=[CH:31][CH:30]=1>>[CH3:26][O:27][C:28](=[O:39])[C:29]1[CH:34]=[CH:33][C:32]([CH2:35][CH2:36][CH2:37][N:14]2[C:13](=[O:15])[CH2:12][CH2:11][CH:10]2[CH2:9][CH2:8][CH:7]([O:6][Si:5]([C:1]([CH3:4])([CH3:3])[CH3:2])([CH3:25])[CH3:24])[CH2:16][C:17]2[CH:22]=[CH:21][C:20]([F:23])=[CH:19][CH:18]=2)=[CH:31][CH:30]=1참가 물질
3
실험 절차
Analogous to the procedure described for Example 1A, Step D, 5-[3-(tert-butyl-dimethyl-silanyloxy)-4-(4-fluoro-phenyl)-butyl]-pyrrolidin-2-one (296 mg, 0.809 mmol) was alkylated with 4-(3-bromo-propyl)-benzoic acid methyl ester (276 mg, 1.07 mmol) over 72 h. Purification by medium pressure chromatography (1:1 hexanes:EtOAc) provided 4-(3-{2-[3-(tert-butyl-dimethyl-silanyloxy)-4-(4-fluoro-phenyl)-butyl]-5-oxo-pyrrolidin-1-yl}-propyl)-benzoic acid methyl ester (250 mg). 1H NMR (CDCl3) (selected peaks) δ7.92 (d, 2H), 7.21 (d, 2H), 7.05 (m, 2H), 6.92 (m, 2H), 3.86 (s, 3H), 3.76 (m, 1H), 3.62 (m, 1H), 3.45 (m, 1H), 0.81 (s, 9 H).