2,6-endo-8,12-exo-3,5-dioxo-10-phenylmethylene-4-oxa-9,11-dithiatetracyclo[5.5.1.02,6.08,12]tridecane 在
硫酸 作用下,
反应 20.0h,
生成 (1S,2S,6R,7R,8S,9R)-4-[1-Phenyl-meth-(Z)-ylidene]-3,5-dithia-tricyclo[5.2.1.0
2,6]decane-8,9-dicarboxylic acid dimethyl ester