重氮甲烷   、                                                                                      
乙酸酐   、                                                                                      
(2S,3R,4S)-4-(2,4-Dihydroxy-phenyl)-2-(3,4-dihydroxy-phenyl)-chroman-3,5,7-triol                                                                                                                                                              在
                                                                                                                                                                                 
吡啶                                                                                                                                  作用下,
                                                                                                                                                                                                                            生成                                                 
[(2R,3R,4S)-4-(2,4-dimethoxyphenyl)-2-(3,4-dimethoxyphenyl)-5,7-dimethoxy-3,4-dihydro-2H-chromen-3-yl] acetate   、                                                                                             
Acetic acid (2S,3S,4S)-4-(2,4-dimethoxy-phenyl)-2-(3,4-dimethoxy-phenyl)-5,7-dimethoxy-chroman-3-yl ester   、                                                                                             Acetic acid (2R,3S,4R)-4-(3,4-dimethoxy-phenyl)-2-(2,4-dimethoxy-phenyl)-5,7-dimethoxy-chroman-3-yl ester   、                                                                                             (2R,3S,4R)-2,3-trans-3,4-cis-3-acetoxy-3',4',7-trimethoxy-4-(2,4,6-trimethoxyphenyl)flavan