重氮甲烷 、 5,7-dihydroxy-8-[2-hydroxy-5-[5-hydroxy-4-oxo-7-[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxychromen-2-yl]phenyl]-2-[4-[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyphenyl]chromen-4-one 在
盐酸 作用下,
生成
4',7''-di-O-methylamentoflavone