C
39H
32ClNO
9 、
[(2S,3R,4R,5R)-5-[(3,6-dimethyl-2-triethylsilyloxybenzoyl)amino]-4-methyl-3,4-bis(triethylsilyloxy)oxan-2-yl] 2,2,2-trichloroethanimidate 在
三氟甲磺酸三甲基硅酯 作用下,
以
二氯甲烷 为溶剂,
以15%的产率得到[(1R,8R,13Z,20R,21S,24R)-8-benzoyloxy-25-chloro-21-[(2S,3R,4R,5R)-5-[(3,6-dimethyl-2-triethylsilyloxybenzoyl)amino]-4-methyl-3,4-bis(triethylsilyloxy)oxan-2-yl]oxy-4,24-dimethoxy-10-oxo-2-oxa-11-azatetracyclo[12.7.3.13,7.017,21]pentacosa-3,5,7(25),13,17-pentaen-15,22-diyn-20-yl] benzoate