[(1S,2S,3R,4S,7R,9S,10S,12R,13S,14R)-1,4,12-trihydroxy-10,14,17,17-tetramethyl-11,15-dioxo-9-triethylsilyloxy-6-oxatetracyclo[11.3.1.03,10.04,7]heptadecan-2-yl] benzoate 在
sodium tetrahydroborate 作用下,
以
甲醇 为溶剂,
以60%的产率得到[(1S,2S,3R,4S,7R,9S,10S,12R,13S,14R,15S)-1,4,12,15-tetrahydroxy-10,14,17,17-tetramethyl-11-oxo-9-triethylsilyloxy-6-oxatetracyclo[11.3.1.03,10.04,7]heptadecan-2-yl] benzoate