A production method of a compound (131), which is the compound represented by the formula (Ia), wherein Y is an oxygen atom, a sulfur atom or the formula ???NRY??? (wherein RY represents a hydrogen or a C1 to C6 alkyl group), and X1 is a group represented by the formula ???C(CN)??? wherein, X203 represents a chlorine atom, a bromine atom or an iodine atom; other symbols represent the same definiti