13-phenylacetyl-20-tritylphorbol 在
di(1H-imidazol-2-yl)methanethione 作用下,
以
四氢呋喃 为溶剂,
反应 8.0h,
以97%的产率得到Phenyl-acetic acid (3aR,6aS,7R,10R,10aR,10bS)-3a,10a-dihydroxy-7-isopropenyl-2,10-dimethyl-3-oxo-5-trityloxymethyl-3,3a,4,6a,7,10,10a,10b-octahydro-benzo[e]azulen-8-yl ester