phthalic acid bis-[17-(3-allyloxy-1-methyl-propyl)-7,12-dihydroxy-10,13-dimethyl-hexadecahydro-cyclopenta[a]phenanthren-3-yl] ester 在
Grubbs catalyst first generation 作用下,
以
甲苯 为溶剂,
反应 1.0h,
以77%的产率得到(1R,3R,4R,5S,7S,8R,9S,12R,13R,24R,25R,28S,29R,30S,32S,33R,34R,36R,37S,40R,51R,54S)-3,7,30,34-tetrahydroxy-8,13,24,29,37,54-hexamethyl-16,21,41,50-tetraoxadecacyclo[49.3.1.136,40.04,9.05,54.08,12.025,29.028,33.032,37.043,48]hexapentaconta-18,43,45,47-tetraene-42,49-dione