The substituent of the alkylene group includes, for example, a halogen such as a fluorine, chlorine, bromine or iodine atom, an alkoxy group having 1-4 atoms, or a phenyl group unsubstituted or substituted by a substituent such as an alkyl group having 1-4 carbon atoms, an alkoxy group having 1-4 carbon atoms, an halogen atom, a nitro group or an acethylamino group.