| abstract |
A process for producing 1,3,4-oxadiazole derivatives represented by the general formulae (I) and (IV) (wherein the symbols have the same meanings as in the description); and the novel 1,3,4-oxadiazole derivative compound represented by the general formula (I). By the process, a compound represented by the general formula (IV), which is an intermediate for a 1,3,4-oxadiazole derivative useful as a medicine (elastase inhibitor), can be efficiently produced via a novel intermediate (the compound represented by the general formula (I)). |