12-sulfodehydroabietic acid disodium salt 、
N-<2-(dimethylamino)ethyl>-4-phenyl-2-pyrrolidone 在
silver carbonate 作用下,
以
水 为溶剂,
以59%的产率得到(1R,4aS,10aR)-1,4a-dimethyl-7-propan-2-yl-6-sulfo-2,3,4,9,10,10a-hexahydrophenanthrene-1-carboxylic acid;1-[2-(dimethylamino)ethyl]-4-phenylpyrrolidin-2-one