1-{(3aR,4R,6R,6aR)-6-[(R)-2-(tert-Butyl-diphenyl-silanyloxy)-1-hydroxy-ethyl]-2,2-dimethyl-tetrahydro-furo[3,4-d][1,3]dioxol-4-yl}-1H-pyrimidine-2,4-dione 在
吡啶 、
1,8-二氮杂双环[5.4.0]十一碳-7-烯 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
生成 (1R,9R,10R,11R,15R)-9-[[tert-butyl(diphenyl)silyl]oxymethyl]-13,13-dimethyl-8,12,14,16-tetraoxa-2,6-diazatetracyclo[8.5.1.02,7.011,15]hexadeca-3,6-dien-5-one