(3S)-8-acetoxy-3,4-dihydro-3-<(1'S)-3'-methyl-1'-<<(methyl 5''-O-acetyl-3''-azido-2'',3''-dideoxy-α-D-ribo-hexofuranosid)uronyl>amino>butyl>-1H-2-benzopyran-1-one 在
三氟化硼乙醚 、
间氯过氧苯甲酸 作用下,
以
二氯甲烷 为溶剂,
反应 5.0h,
以66%的产率得到(3S)-3-<(1'S)-1'-<<(5''-O-acetyl-3''-azido-2'',3''-dideoxy-α-D-ribo-hexaro-1'',4''-lactone)-6''-oyl>amino>-3'-methylbutyl>-3,4-dihydro-8-hydroxy-1H-2-benzopyran-1-one