20(S)-3β-o-(1-chloracetyl)panaxadiol 、
5-(4-fluorophenyl)-2-methyl-1H-pyrrole-3-carboxylic acid 在
potassium carbonate 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
以71 %的产率得到2-(((3S,5R,8R,9R,10R,12R,13R,14R,17S)-12-hydroxy-4,4,8,10,14-pentamethyl-17-((R)-2,6,6-trimethyltetrahydro-2H-pyran-2-yl)hexadecahydro-1H-cyclopenta[α]phenanthren-3-yl)oxy) 2-oxoethyl-5-(4-fluorophenyl)-2-methyl-1H-pyrrole-3-carboxylate