| abstract |
(57) [Summary] [Object] The present invention relates to a novel nitrogen-containing bicyclic compound, a method for producing these compounds, and a pharmaceutical composition containing these compounds. The compound according to the present invention is a compound represented by the following formula (I), an enantiomer, a diastereomer and an epimer thereof, and a pharmaceutically acceptable acid addition salt thereof: Wherein A represents, together with the nitrogen atom and carbon atom to which it is attached, a heterocycle, B represents together with the nitrogen atom to which it is attached, represents a heterocycle, R 1 Represents an alkoxy group, a benzyloxy group, a phenoxy group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkenyl group or a substituted or unsubstituted cycloalkyl group. .. |