<1R-(1α,4aβ,4bα,7β,8α,10aα)>-1,2,3,4,4a,4b,5,6,7,8,10,10a-Dodecahydro-8-hydroxy-1,4a,7-trimethyl-7-(4-pentenoyl)-1-phenanthrencarbonsaeure-methylester 在
苯亚硒酸酐 作用下,
以
苯 为溶剂,
反应 5.0h,
以64%的产率得到<1R-(1α,4aβ,4bα,7β,10aα)>-1,2,3,4,4a,4b,5,6,7,8,10,10a-Dodecahydro-1,4a,7-trimethyl-8-oxo-7-(4-pentenoyl)-1-phenanthrencarbonsaeure-methylester