(2RS,4S,6R)-Tetrahydro-2-hydroxy-6-{(4S,6S)-{6-hydroxy-4-[(4-methoxybenzoyl)oxy]cyclohept-1-en-1-yl}-2-oxopropyl}-2H-pyrann-4-yl 4-methoxybenzoate                                                                                                                                                              在
                                                                                                                                                                                 
tetramethylammonium triacetoxyborohydride                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
溶剂黄146                                                                                  为溶剂,
                                                                                                                                                    反应 15.0h,
                                                                                                                以70%的产率得到(1R,6R)-6-Hydroxy-4-{(2R,4S,6S)-2,4,8-trihydroxy-6-[(4-methoxybenzoyl)oxy]octyl}cyclohept-1-en-1-yl 4-methoxybenzoate