[(2S,3R,4S,6R)-4-(dimethylamino)-6-methyl-2-(2,2,2-trichloroethanimidoyl)oxyoxan-3-yl] acetate 、
narbonolide 在
三氟甲磺酸 作用下,
以
二氯甲烷 为溶剂,
反应 14.0h,
以59%的产率得到[(2S,3R,4S,6R)-4-(dimethylamino)-2-[[(3R,5R,6S,7S,9R,11E,13R,14R)-14-ethyl-3,5,7,9,13-pentamethyl-2,4,10-trioxo-1-oxacyclotetradec-11-en-6-yl]oxy]-6-methyloxan-3-yl] acetate