N-[1-[(2R,3R,4R,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]-2-oxopyrimidin-4-yl]benzamide 生成 N-[1-[(6aR,8R,9R,9aR)-9-hydroxy-2,2,4,4-tetra(propan-2-yl)-6a,8,9,9a-tetrahydro-6H-furo[3,2-f][1,3,5,2,4]trioxadisilocin-8-yl]-2-oxopyrimidin-4-yl]benzamide