(1S,3E,5S,9S,11S,15R,19R,21S,23E,24S)-11-(3-formylphenyl)-1,15-dihydroxy-19-(hydroxymethyl)-23-(2-methoxy-2-oxoethylidene)-2,2-dimethyl-17-oxo-6,12,18,25,26-pentaoxatricyclo[19.3.1.15,9]hexacos-3-en-24-yl octanoate 在
sodium tetrahydroborate 作用下,
以
甲醇 、
二氯甲烷 为溶剂,
以2.1 mg的产率得到[(1S,3E,5S,9S,11S,15R,19R,21S,23E,24S)-1,15-dihydroxy-19-(hydroxymethyl)-11-[3-(hydroxymethyl)phenyl]-23-(2-methoxy-2-oxoethylidene)-2,2-dimethyl-17-oxo-6,12,18,25,26-pentaoxatricyclo[19.3.1.15,9]hexacos-3-en-24-yl] octanoate