[(1S,2S,3R,4S,7R,9S,10S,12R,15S)-4-acetyloxy-15-[(2R,3S)-3-(8-bromooctanoylamino)-2-[tert-butyl(dimethyl)silyl]oxy-3-phenylpropanoyl]oxy-1-hydroxy-10,14,17,17-tetramethyl-11-oxo-9,12-bis(triethylsilyloxy)-6-oxatetracyclo[11.3.1.03,10.04,7]heptadec-13-en-2-yl] 6-bromohexanoate 在
sodium sulfide 作用下,
以
丙酮 为溶剂,
反应 1.0h,
以44%的产率得到[(2R,4S,5S,7R,10S,11R,12S,30S,31R,34S,36S)-31-[tert-butyl(dimethyl)silyl]oxy-36-hydroxy-4,37,37,38-tetramethyl-3,14,28,32-tetraoxo-30-phenyl-2,5-bis(triethylsilyloxy)-8,13,33-trioxa-20-thia-29-azapentacyclo[32.3.1.04,11.07,10.012,36]octatriacont-1(38)-en-10-yl] acetate