(R)-2-[(7R,8S,9R)-9-((1R,3R)-3-{(4R,5S,6R)-6-[(S)-2-(tert-Butyl-diphenyl-silanyloxy)-1-methyl-ethyl]-2,2,5-trimethyl-[1,3]dioxan-4-yl}-3-hydroxy-1-methyl-butyl)-8-methyl-6,10-dioxa-spiro[4.5]dec-7-yl]-pentane-2,3-diol 生成 (2R,3R)-2-((7R,8S,9R)-9-{(1R,3R)-3-Hydroxy-3-[(4R,5S,6R)-6-((S)-2-hydroxy-1-methyl-ethyl)-2,2,5-trimethyl-[1,3]dioxan-4-yl]-1-methyl-butyl}-8-methyl-6,10-dioxa-spiro[4.5]dec-7-yl)-pentane-2,3-diol 、
(2R,3S)-2-((7R,8S,9R)-9-{(1R,3R)-3-Hydroxy-3-[(4R,5S,6R)-6-((S)-2-hydroxy-1-methyl-ethyl)-2,2,5-trimethyl-[1,3]dioxan-4-yl]-1-methyl-butyl}-8-methyl-6,10-dioxa-spiro[4.5]dec-7-yl)-pentane-2,3-diol