| 摘要 |
<p>A compound of formula (I) or a salt thereof, or a solvate thereof, wherein: R1 represents an alkyl group or a substituted or unsubstituted aryl group; R2, R3 and R4 each independently represent hydrogen, alkyl, aryl or substituted aryl; R5 and R6 each independently represent hydrogen, hydroxy, amino, alkoxy, optionally substituted aryloxy, optionally substituted benzyloxy, alkylamino, dialkylamino, halo, trifluoromethyl, trifluoromethoxy, nitro, alkyl, carboxy, carbalkoxy, carbamoyl, alkylcarbamoyl, or R5 and R6 together represent methylenedioxy, carbonyldioxy or carbonyldiamino; X represents a hydroxy or an alkoxy group wherein the alkyl group may be substituted or unsubstituted or X represents a group NRsRt wherein Rs and Rt each independently represent hydrogen, alkyl, substituted alkyl, optionally substituted alkenyl, optionally substituted aryl, optionally substituted arylalkyl, an optionally substituted heterocyclic group or an optionally substituted heterocyclylalkyl group, or Rs and Rt together with the nitrogen to which they are attached form a heterocyclic group; and Y represents O or S and Z represents CH, CH=CH or N; or Y represents NR7 wherein R7 represents hydrogen, hydroxy, alkanoyl, alkyl, aminoalkyl, hydroxyalkyl, carboxyalkyl, carbalkoxyalkyl, carbamoyl or aminosulphonyl and Z represents CH=CH or N; a pharmaceutical composition containing such a compound, a process for preparing such a compound and the use of such a compound in medicine.</p> |
