| abstract |
PROBLEM TO BE SOLVED: To provide a new compound. SOLUTION: A compound represented by the formula (I) or (II), a salt thereof or a solvate thereof. (R 1 is H or halogen atom; R 2 to R 4 are H, halogen atom, hydroxyl group, −OR 11 etc.; R 5 is H, halogen atom, or substituted / unsubstituted linear or branched chain. such as an alkyl group of C1~6 or C8~9; R 6 and R 7, H, etc.; R 8 is, H, halogen, or optionally straight-chain optionally substituted by a halogen atom or a branched of C1-3 Alkyl group; n is 0 or 1) [Selection diagram] Fig. 3 |