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