(S)-4-methyl-N-(pent-4-yn-2-yl)benzenesulfonamide 、
(S)-3-(trifluoromethyl)-N-(5-(trimethylsilyl)pent-4-yn-2-yl)benzenesulfonamide 以afforded (S)-N-(pent-4-yn-2-yl)-3-(trifluoromethyl)-benzenesulfonamide (55)的产率得到(S)-N-(pent-4-yn-2-yl)-3-(trifluoromethyl)-benzenesulfonamide