丁炔二酸二甲酯 、
2-hydroxy-2-methyl-2-(1,3,4,5,6-pentahydropyrimidin-2-ylium)-1-(p-chlorophenylimino)thiolate 以
甲醇 为溶剂,
反应 0.67h,
以70%的产率得到11-(4'-chlorophenyl)-9-methyl-12-oxa-2-oxo-10-thioxo-3,7,11-triazatricyclo[7.2.1.0(3,8)]dodec-7-en-1-ylacetic acid methyl ester