methoxymethyl (1R,2R,5S,6R,8R,9S,10R,11S,12S)-5,12-diacetyloxy-6-bromo-6-formyl-11-methyl-16-oxo-15-oxapentacyclo[9.3.2.15,8.01,10.02,8]heptadec-13-ene-9-carboxylate 在
sodium tetrahydroborate 作用下,
以
乙二醇二甲醚 为溶剂,
以73%的产率得到methoxymethyl (1R,2R,5S,6S,8R,9S,10R,11S,12S)-5,12-diacetyloxy-6-bromo-6-(hydroxymethyl)-11-methyl-16-oxo-15-oxapentacyclo[9.3.2.15,8.01,10.02,8]heptadec-13-ene-9-carboxylate