重氮甲烷 、
globoscinic acid 以
乙醚 为溶剂,
生成 (3S,5R)-5-(3-Acetyl-2-hydroxy-6-methoxy-5-methyl-phenyl)-3-methoxy-dihydro-furan-2-one 、 (3S,5S)-5-(3-Acetyl-2-hydroxy-6-methoxy-5-methyl-phenyl)-3-methoxy-dihydro-furan-2-one 、 (2S,4R)-4-(3-Acetyl-2-hydroxy-6-methoxy-5-methyl-phenyl)-4-hydroxy-2-methoxy-butyric acid methyl ester 、
(2S,4S)-4-(3-Acetyl-2-hydroxy-6-methoxy-5-methyl-phenyl)-4-hydroxy-2-methoxy-butyric acid methyl ester