| 摘要 |
A compound of the formula: wherein ring A is a 7-membered or 8-membered nitrogen-containing ring optionally further substituted, ring B is an optionally substituted aryl group or an optionally substituted heteroaryl group, X1 is a group represented by —NR3—Y1—, —O—, —S—, —SO—, —SO2— or —CHR3— wherein R3 is a hydrogen atom or an optionally substituted aliphatic hydrocarbon group, or R3 may be bonded to the carbon atom of ring B to form an optionally substituted ring structure, and Y1 is a bond or an optionally substituted alkylene, R1 is a hydrogen atom, or an optionally substituted group bonded via a carbon atom or a sulfur atom, the formula shows a single bond or a double bond, when R2 is —R2, R2 is a hydrogen atom, or an optionally substituted group bonded via a carbon atom, a nitrogen atom, an oxygen atom or a sulfur atom, and when R2 is ═R2, R2 is an oxo group, an optionally substituted alkylidene group, or an optionally substituted imino group.
|
