2,2-dimethyl-5-pentyl-3-thiazoline 、
Isothiocyanato-acetic acid 2,6-di-tert-butyl-4-methyl-phenyl ester 在
三氟化硼乙醚 、
lithium diisopropyl amide 作用下,
以
四氢呋喃 为溶剂,
生成 (2,6-ditert-butyl-4-methylphenyl) (1S,7S,7aS)-3,3-dimethyl-1-pentyl-5-sulfanylidene-1,6,7,7a-tetrahydroimidazo[1,5-c][1,3]thiazole-7-carboxylate 、
(2,6-ditert-butyl-4-methylphenyl) (1S,7R,7aS)-3,3-dimethyl-1-pentyl-5-sulfanylidene-1,6,7,7a-tetrahydroimidazo[1,5-c][1,3]thiazole-7-carboxylate