[(2S,3R,4S,6R)-4-(dimethylamino)-2-[[(3R,4S,5S,6R,7R,9R,11E,13R,14R)-14-ethyl-4,13-dihydroxy-13-(hydroxymethyl)-7-methoxy-3,5,7,9,11-pentamethyl-2,10-dioxo-1-oxacyclotetradec-11-en-6-yl]oxy]-6-methyloxan-3-yl] benzoate 在
咪唑 、
叔丁基二甲基氯硅烷 作用下,
以
DMF (N,N-dimethyl-formamide) 为溶剂,
反应 16.0h,
以77%的产率得到[(2S,3R,4S,6R)-2-[[(3R,4S,5S,6R,7R,9R,11E,13R,14R)-13-[[tert-butyl(dimethyl)silyl]oxymethyl]-14-ethyl-4,13-dihydroxy-7-methoxy-3,5,7,9,11-pentamethyl-2,10-dioxo-1-oxacyclotetradec-11-en-6-yl]oxy]-4-(dimethylamino)-6-methyloxan-3-yl] benzoate