(-)-(3S,4R,5R)-3-(3',4',5'-trimethoxybenzyl)-4-<3'',4''-methylenedioxy-α,α-bis(phenylthio)benzyl>-5-(1-menthyloxy)butyrolactone                                                                                                                                                              在
                                                                                                                                                                                 sodium tetrahydroborate   、                                                                                                  nickel dichloride                                                                                                                                  作用下,
                                                                                                                                                                                                                            以100%的产率得到(-)-(3S,4R,5R)-3-(3',4'5'-trimethoxybenzyl)-4-(3'',4''-methylenedioxybenzyl)-5-(1-menthyloxy)butyrolactone