7,4'-dibenzoyl-3,5-dihydroxyflavone-3-O-β-D-(2'',3'',4''-tri-O-acetyl-6''-O-chloroacetyl)glucopyranoside                                                                                                                                                              在
                                                                                                                                                                                 
氢气                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
乙醇                                                                                  为溶剂,
                                                                                                                                                                                        以90%的产率得到Chloro-acetic acid (2R,3R,4S,5R,6S)-3,4,5-triacetoxy-6-[5,7-dihydroxy-2-(4-hydroxy-phenyl)-4-oxo-4H-chromen-3-yloxy]-tetrahydro-pyran-2-ylmethyl ester