申请人:ONO PHARMACEUTICAL CO., LTD.
公开号:EP1253143A1
公开(公告)日:2002-10-30
A process for the preparation of compounds represented by formula (I) and (III):
(wherein symbols in the formula are described in the description) and the novel 1,3,4-oxadiazole derivative compound represented by formula (I). According to the present invention, preparation of intermediates (compounds of formula (III)) of 1,3,4-oxadiazole derivatives useful as pharmaceuticals (elastase inhibitors) can be prepared efficiently via novel synthesis intermediates (compounds of formula (I)).
一种制备式 (I) 和 (III) 所代表化合物的工艺:
(式中的符号已在描述中说明)和式(I)代表的新型 1,3,4-噁二唑衍生物化合物的制备方法。根据本发明,可通过新型合成中间体(式(I)化合物)高效制备用作药物(弹性蛋白酶抑制剂)的 1,3,4-噁二唑衍生物中间体(式(III)化合物)。