| http://www.w3.org/ns/prov#value | - According to the following Production method 2, compound (Ic) (compound (I) wherein R1 is a hydrogen atom, one of R2, R3 and R4 is Q (Q is an optionally substituted C6-14 aryl group or an optionally substituted aromatic heterocyclic group), and the others are hydrogen atoms) can be produced from compound (Ib) (compound (I) wherein R1 is a hydrogen atom, one of R2, R3 and R4 is a halogen atom, and
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