N,N'-(1,4-亚苯基)双马来酰亚胺 、
4-ethyl-3-oxobis[1,2]dithiolo[3,4:4',3'-e][1,4]thiazine-5-thione 在
scandium tris(trifluoromethanesulfonate) 作用下,
以
二氯甲烷 为溶剂,
反应 1.0h,
以27%的产率得到(3aR,6aS)(Z/E)-5-(4-(2,5-dioxo-2,5-dihydro-1H-pyrrol-1-yl)-phenyl)-2-(4-ethyl-3-oxo-6-thioxo-3H,4H-[1,2]dithiolo[3,4-b]-[1,4]thiazin-5(6H)-ylidene)dihydro-4H-[1,3]dithiolo[4,5-c]-pyrrole-4,6(5H)-dione