methyl (E,5S)-5-[tert-butyl(dimethyl)silyl]oxy-6-[(2S,6R)-2-[(2S,3R,6R,7S,8S,9R,10S,11S)-6-hydroxy-2-methoxy-10-(methoxymethoxy)-13-[(2S,4R,6S)-4-methoxy-6-methyloxan-2-yl]-8-[(4-methoxyphenyl)methoxy]-3,7,9,11-tetramethyl-4-oxotridecyl]-3,6-dihydro-2H-pyran-6-yl]-2-methylhex-2-enoate 在
儿萘酚硼烷 作用下,
以
四氢呋喃 为溶剂,
反应 4.0h,
以64%的产率得到methyl (E,5S)-5-[tert-butyl(dimethyl)silyl]oxy-6-[(2S,6R)-2-[(2S,3S,4S,6R,7S,8S,9R,10S,11S)-4,6-dihydroxy-2-methoxy-10-(methoxymethoxy)-13-[(2S,4R,6S)-4-methoxy-6-methyloxan-2-yl]-8-[(4-methoxyphenyl)methoxy]-3,7,9,11-tetramethyltridecyl]-3,6-dihydro-2H-pyran-6-yl]-2-methylhex-2-enoate