N-methyl-8-oxa-2,3-diaza-spiro[4.5]dec-3-ene-2-carboximidothioic acid methyl ester 、
6-氯-咪唑[2,1-B]噻唑-5-磺酸胺 在
sodium hydroxide 、
Sodium sulfate-III 、 silica gel 作用下,
以
乙腈 为溶剂,
反应 16.0h,
以afforded 0.56 g (69%) 6-chloro-imidazo[2,1-b]thiazole-5-sulfonic acid methylamino-(8-oxa-2,3-diaza-spiro[4.5]dec-3-en-2-yl)-methylene-amide的产率得到6-Chloro-imidazo[2,1-b]thiazole-5-sulfonic acid methylamino-(8-oxa-2,3-diaza-spiro[4.5]dec-3-en-2-yl)-methylene-amide