[Br:1][C:2]1[NH:6][CH:5]=[C:4]([C:7]([O:9][CH3:10])=[O:8])[C:3]=1[CH:11]([CH3:13])[CH3:12].[H-].[Na+].[C:16]1([S:22](Cl)(=[O:24])=[O:23])[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=1>>[Br:1][C:2]1[N:6]([S:22]([C:16]2[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=2)(=[O:24])=[O:23])[CH:5]=[C:4]([C:7]([O:9][CH3:10])=[O:8])[C:3]=1[CH:11]([CH3:13])[CH3:12]Using methyl 5-bromo-4-isopropyl-1H-pyrrole-3-carboxylate (3.29 g), sodium hydride (60% in oil, 708 mg), and benzenesulfonyl chloride (2.60 g), a procedure as in Reference Example 41 was performed to give the title compound as a pale-yellow oil (yield 4.8 g, 93%).
Loading…