| 摘要 |
<p>Compounds represented by general formula (I), pharmaceutically acceptable salts and esters thereof, and preparation and uses thereof, wherein R1 represents hydrogen or methyl; R2 represents hydrogen, cyano, carboxyl, lower alkoxycarbonyl, or -CON(R3)R4, wherein R?3 and R4¿ each represents hydrogen or lower alkyl, or R?3 and R4¿ may form together with the adjacent nitrogen atom a heterocyclic group selected from the group consisting of aziridinyl, azetidinyl, pyrrolidinyl, piperidino, piperazinyl, 4-(lower alkyl)piperazinyl, morpholino, and thiomorpholino; and n is an integer of 1 to 3.</p> |
