| abstract |
A compound represented by the formula (1): n nwherein A is a nitrogen atom or CR 4 , B is an oxygen atom, a sulfur atom or NR 9 (provided that when A is a nitrogen atom, B is not NH), R 1 is a C 2-14 aryl group, L 1 is a bond, CR 10 R 11 , an oxygen atom, a sulfur atom or NR 12 , X is OR 13 , SR 13 or NR 14 NR 15 , R 2 is a hydrogen atom, a formyl group, a C 1-10 alkyl group or the like, L 2 is a bond or the like, L 3 is a bond, CR 17 R 18 , an oxygen atom, a sulfur atom or NR 19 , L 4 is a bond, CR 20 R 21 , an oxygen atom, a sulfur atom or NR 22 , Y is an oxygen atom, a sulfur atom or NR 23 , and R 3 is a C 2-14 aryl group, a tautomer, prodrug or pharmaceutically acceptable salt of the compound or a solvate thereof. |