异氰酸戊酯 、
ethyl 2-[1-(3'-methylaminobiphenyl-4-yl)meth-(E)-ylidene]butyrate 在
silica 、 ethyl acetate heptane 作用下,
反应 0.33h,
以291 mg (100%) of ethyl 2-[1-[3′-(3-pentyl-1-methylureido)biphenyl-4-yl]meth-(E)-ylidene]butyrate are obtained in the form of a yellowish oil的产率得到ethyl 2-[1-[3'-(3-pentyl-1-methylureido)biphenyl-4-yl]meth-(E)-ylidene]butyrate