[(4aR,8R,8aR)-2,2-ditert-butyl-6-[(1R,5R,17R)-10-(methoxymethoxy)-17-methyl-2,4,14-trioxa-13-azapentacyclo[10.6.1.01,5.06,11.015,19]nonadeca-6(11),7,9,12,15(19)-pentaen-5-yl]-4,4a,8,8a-tetrahydropyrano[3,2-d][1,3,2]dioxasilin-8-yl]oxy-tri(propan-2-yl)silane 在
potassium tert-butylate 作用下,
以
四氢呋喃 为溶剂,
反应 0.58h,
以76%的产率得到(10S)-10-[(4aR,8R,8aR)-2,2-ditert-butyl-8-tri(propan-2-yl)silyloxy-4,4a,8,8a-tetrahydropyrano[3,2-d][1,3,2]dioxasilin-6-yl]-9-imino-8-(methoxymethoxy)-3-methylanthracene-1,10-diol