Examples of the substituent for these ring or rings are halogen atom such as chlorine atom, bromine atom and iodine atom, alkyl group having the number of carbon atoms ranging from 1 to 6, alkoxyl group, alkoxycarbonyl group, alkoxysulfonyl group such as methoxysulfonyl group and ethoxysulfonyl group, cyano group, amino group, dimethylamino group, and nitro group.