[(2R,3S,5R)-3-hydroxy-5-(5-methyl-2,4-dioxopyrimidin-1-yl)oxolan-2-yl]methyl (2S)-2-(3-benzoylphenyl)propanoate 以
乙腈 为溶剂,
反应 5.5h,
以19%的产率得到(2R,4S,5R,9S,15S,17R,21S)-4-hydroxy-9,17-dimethyl-15-phenyl-7,16,23-trioxa-1,19-diazapentacyclo[13.5.1.12,5.110,14.017,21]tricosa-10(22),11,13-triene-8,18,20-trione