3-O-methylfluorescein 、
cholesteryl ricinoleate 在
三苯基膦 、
偶氮二甲酸二乙酯 作用下,
以78%的产率得到2-(6-Methoxy-3-oxo-3H-xanthen-9-yl)-benzoic acid (Z)-11-[(3S,8S,9S,10R,13R,14S,17R)-17-((R)-1,5-dimethyl-hexyl)-10,13-dimethyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yloxycarbonyl]-1-hexyl-undec-3-enyl ester