(-)-(1R,2R,3R,4S)-1,7,7-trimethyl-2-phenyl-bicyclo[2.2.1]heptane-2,3-diol 、
[2-(Ethoxycarbonyl)prop-2-en-1-yl]boronic acid 在
magnesium sulfate 作用下,
以
乙醚 为溶剂,
反应 24.0h,
以2.2 g的产率得到ethyl 2-[[(1R,2S,6R,7S)-1,10,10-trimethyl-2-phenyl-3,5-dioxa-4-boratricyclo[5.2.1.02,6]decan-4-yl]methyl]prop-2-enoate