[(3R,4R,5R,9S,10R)-1-[tert-butyl(diphenyl)silyl]oxy-11-[(10S,16R,20R,21S,22R,24E)-16-[tert-butyl(diphenyl)silyl]oxy-22-methoxy-10,21-dimethyl-12,18-dioxo-3,7,19,27-tetraoxa-29,30,31-triazatetracyclo[24.2.1.12,5.16,9]hentriaconta-1(28),2(31),4,6(30),8,24,26(29)-heptaen-20-yl]-10-methoxy-3,5,9-trimethyl-6-oxoundecan-4-yl] acetate 在
THF-pyridine 作用下,
以
四氢呋喃 为溶剂,
反应 1.5h,
生成
(3R,4R,5R,9S,10R)-11-((12Z,22Z,32Z,4E,7R,8S,9R,13R,19S)-13-((tert-butyldiphenylsilyl)oxy)-7-methoxy-8,19-dimethyl-11,17-dioxo-10-oxa-1(2,4),2,3(4,2)-trioxazolacyclononadecaphan-4-en-9-yl)-1-hydroxy-10-methoxy-3,5,9-trimethyl-6-oxoundecan-4-yl acetate