A compound represented by the formula or a salt thereof: wherein A is wherein Q 1 is a single bond, Q 3 is N, Q 5 is a single bond, and Q 6 is CR Q61, R Q21, R Q22, R Q41, R Q42 and R Q61 are H, R 1, R 2, R 3 and R 4 are the same as or different from each other, and are H or halogen, E is a single bond, G is a single bond, J is a single bond, L is O or NH, U is a single bond or O, V is a single bond, or C 1 - 6 alkylene which may be substituted with oxo (=O), W is a single bond, X is wherein T 1 is a single bond, CR T11 R T12, or NR T13, T 2 is CR T21 R T22 or NR T23, T 3 is CR T31 or N, T 4 is CR T41 R T42 or NR T43, T 5 is a single bond, (CR T51 R T52) m, or NR T53, T 6 is CR T61 R T62, O, or NR T63, R T11, R T12, R T13, R T21, R T22, R T23, R T31, R T41, R T42, R T43, R T51, R T52, R T53, R T61, R T62 and R T63 are the same as or different from each other, and are H, OH, halogen, C 1-6 alkyl which may be substituted, aryl which may be substituted, cycloalkyl which may be substituted, a hetero ring group which may be substituted, O-(C 1-6 alkyl which may be substituted), NH(C 1-6 alkyl which may be substituted), N(C 1-6 alkyl which may be substituted) 2, NH(aryl which may be substituted), N(aryl which may be substituted) 2, SO 2 -(C 1-6 alkyl which may be substituted), or SO 2 -(cycloalkyl which may be substituted), or R T11 and R T61, R T11 and R T63 R T13 and R T61, R T13 and R T63, R T21 and R T31, R T23 and R T31, R T41 and R T51, R T43 and R T51, R T41 and R T53, or R T43 and R T53 may be combined with each other to form a new bond, or R T11 and R T12, R T21 and R T22, R T41 and R T42, R T51 and R T52, or R T61 and R T62 may be combined with each other to form oxo (=O), and m is 1 or 2. A is wherein Q 1 is a single bond, Q 3 is N, Q 5 is a single bond, and Q 6 is CR Q61, R Q21, R Q22, R Q41, R Q42 and R Q61 are H, R 1, R 2, R 3 and R 4 are the same as or different from each other, and are H or halogen, E is a single bond, G is a single bond, J is a single bond, L is O or NH, U is a single bond or O, V is a single bond, or C 1 - 6 alkylene which may be substituted with oxo (=O), W is a single bond, X is wherein T 1 is a single bond, CR T11 R T12, or NR T13, T 2 is CR T21 R T22 or NR T23, T 3 is CR T31 or N, T 4 is CR T41 R T42 or NR T43, T 5 is a single bond, (CR T51 R T52) m, or NR T53, T 6 is CR T61 R T62, O, or NR T63, R T11, R T12, R T13, R T21, R T22, R T23, R T31, R T41, R T42, R T43, R T51, R T52, R T53, R T61, R T62 and R T63 are the same as or different from each other, and are H, OH, halogen, C 1-6 alkyl which may be substituted, aryl which may be substituted, cycloalkyl which may be substituted, a hetero ring group which may be substituted, O-(C 1-6 alkyl which may be substituted), NH(C 1-6 alkyl which may be substituted), N(C 1-6 alkyl which may be substituted) 2, NH(aryl which may be substituted), N(aryl which may be substituted) 2, SO 2 -(C 1-6 alkyl which may be substituted), or SO 2 -(cycloalkyl which may be substituted), or R T11 and R T61, R T11 and R T63 R T13 and R T61, R T13 and R T63, R T21 and R T31, R T23 and R T31, R T41 and R T51, R T43 and R T51, R T41 and R T53, or R T43 and R T53 may be combined with each other to form a new bond, or R T11 and R T12, R T21 and R T22, R T41 and R T42, R T51 and R T52, or R T61 and R T62 may be combined with each other to form oxo (=O), and m is 1 or 2.