Patent ID: 9732042
Date: 2017-08-15
CPC Classifications: C07D

Claim:
1. A method for producing a compound [1] comprising steps of; obtaining a compound represented by formula [3]: wherein Q represents an optionally halogenated C1 to C12 alkylsulfonyl group, a C6 to C24 arylsulfonyl group optionally substituted with at least one atom or group selected from group A, or a benzyl group in which at least one hydrogen atom on the benzene ring is optionally substituted with an atom or a group selected from group B, X represents a hydrogen atom, a halogen atom or a methyl group, and Y represents a hydrogen atom, a halogen atom or a methyl group, by reacting a compound represented by formula [4]: wherein R Q and Y have the same meanings as described above, Group A: a group consisting of optionally halogenated C1 to C4 alkoxy groups, halogen atoms and a nitro group, Group B: a group consisting of optionally halogenated C with a compound represented by formula [5]: wherein X has the same meaning as described above, and Z represents a chlorine atom or bromine atom; obtaining a compound represented by formula [2]: wherein X and Y have the same meanings as described above, by deprotecting the compound [3]; and obtaining a compound represented by formula [1]: wherein X and Y have the same meanings as described above, by reacting the compound [2] with a chlorinating agent.