ethyl 2-(3-(4-bromo-2-(chlorosulfonyl)phenylthio)-2,6,6-trimethyl-4-oxo-4,5,6,7-tetrahydro-1H-indol-1-yl)acetate 、
四氢吡咯 在
二氯甲烷 、 silica gel 作用下,
以
二氯甲烷 为溶剂,
反应 24.0h,
以afforded ethyl 2-(3-(4-bromo-2-(pyrrolidin-1-ylsulfonyl)phenylthio)-2,6,6-trimethyl-4-oxo-4,5,6,7-tetrahydro-1H-indol-1-yl)acetate (0.003 g, 5.14 μmol, 0.3% yield) as a white solid的产率得到ethyl 2-(3-(4-bromo-2-(pyrrolidin-1-ylsulfonyl)phenylthio)-2,6,6-trimethyl-4-oxo-4,5,6,7-tetrahydro-1H-indol-1-yl)acetate