3'-Isopropyl-7-nitro-3,4-dihydro-2H-1,5-benzodioxepin-3-spiro-5'-oxazolidin-2'-on 、
7-Diethylamino-3'-isopropyl-3,4-dihydro-2H-1,5-benzodioxepin-3-spiro-5'-oxazolidin-2'-on 以there is obtained 7-dimethylamino-3-isopropylaminomethyl-3-hydroxy-3,4-dihydro-2H-1,5-benzodioxepin的产率得到7-dimethylamino-3-isopropylaminomethyl-3-hydroxy-3,4-dihydro-2H-1,5-benzodioxepin