tert-butyl 2-amino-5-methyl-5,7-dihydro-4H-thieno[2,3-c]pyran-3-carboxylate 、
苯甲酰基异硫氰酸酯 在
氩 、
乙腈 、
水 、
tert-butyl 2-(3-benzoylthioureido)-5-methyl-5,7-dihydro-4H-thieno[2,3-c]pyran-3-carboxylate 作用下,
以
乙醇 为溶剂,
反应 16.33h,
以afforded the desired product tert-butyl 2-(3-benzoylthioureido)-5-methyl-5,7-dihydro-4H-thieno[2,3-c]pyran-3-carboxylate as a pale yellow oil (0.057 g, 0.132 mmol, 34% yield)的产率得到tert-butyl 2-(3-benzoylthioureido)-5-methyl-5,7-dihydro-4H-thieno[2,3-c]pyran-3-carboxylate