carbonic acid benzyl ester 4-dimethylamino-2-[2-ethyl-3,4,10-trihydroxy-13-(4-methoxy-4,6-dimethyl-5-oxo-tetrahydro-pyran-2-yloxy)-3,5,6,8,10,12,14-heptamethyl-15-oxo-1-oxa-6-aza-cyclopentadec-11-yloxy]-6-methyl-tetrahydro-pyran-3-yl ester 在
甲醇 、
甲基溴化镁 作用下,
生成 (2R,3S,4R,5R,8R,10R,11R,12S,13S,14R)-11-[(2S,3R,4S,6R)-4-(dimethylamino)-3-hydroxy-6-methyloxan-2-yl]oxy-13-[(2R,4R,5R,6S)-5-[3-(dimethylamino)prop-1-ynyl]-5-hydroxy-4-methoxy-4,6-dimethyloxan-2-yl]oxy-2-ethyl-3,4,10-trihydroxy-3,5,6,8,10,12,14-heptamethyl-1-oxa-6-azacyclopentadecan-15-one