| 主权项 |
1. A compound represented by the formula (I): wherein ring A is an optionally further substituted 5- or 6-membered nitrogen-containing heterocycle, as a ring A-constituting atom is ═N— or —N═, ring B is a benzene ring or a pyridine ring, each of which is optionally further substituted, X is a carbon atom or a nitrogen atom, L is a bond or an optionally substituted C1-2 alkylene group, Y is (1) the formula —CH2—O—R1 wherein R1 is a substituent, or (2) the formula: wherein R2 and R3 are each independently a hydrogen atom or a substituent, R4 is a substituent, or R3 and R4 are joined to optionally form, together with the adjacent carbon atom, an optionally further substituted ring, provided when L is a bond, then R3 and R4 are not 3-pyridyl groups at the same time, and Z is a substituent, (provided that 3-amino-N-[1-(4-chlorophenyl)-3-methoxypropyl]pyrazine-2-carboxamide is excluded), or a salt thereof. |
