代理机构 |
Scully, Scott, Murphy & Presser, P.C. |
代理人 |
Scully, Scott, Murphy & Presser, P.C. |
主权项 |
1. A compound of formula (I): wherein R1 is hydrogen, halogen or an optionally substituted group selected from amino, straight or branched C1-C6 alkyl, C3-C7 cycloalkyl, cycloalkyl-alkyl, aryl, arylalkyl, heterocyclyl and heterocyclylalkyl; R2 is a group selected from —NR″R′″, —N(OR′″)R″ and OR″, wherein R″ and R′″ are, each independently, hydrogen or an optionally substituted group selected from straight or branched C1-C6 alkyl, C3-C7 cycloalkyl, cycloalkyl-alkyl, aryl, arylalkyl, heterocyclyl and heterocyclylalkyl or, together with the nitrogen atom to which they are bonded, R″ and R′″ may form a 5 to 6 membered heteroaryl or heterocyclyl group, optionally containing one additional heteroatom selected among N, O and S; R3 is hydrogen or optionally substituted group selected from straight or branched C1-C6 alkyl, C3-C7 cycloalkyl, cycloalkyl-alkyl, aryl, arylalkyl, heterocyclyl and heterocyclylalkyl; R4 is hydrogen or an optionally substituted group selected from straight or branched C1-C6 alkyl, C3-C7 cycloalkyl, cycloalkyl-alkyl, aryl, arylalkyl, heterocyclyl and heterocyclylalkyl; X is a single bond or a divalent radical selected from —NR′—, —CONR′—, —NH—CO—NH—, —O—, —S—, —SO2— and —OSO2—, wherein R′ is hydrogen or an optionally substituted group selected from straight or branched C1-C6 alkyl, C3-C7 cycloalkyl, cycloalkyl-alkyl, aryl, arylalkyl, heterocyclyl and heterocyclylalkyl or, together with the nitrogen atom to which they are bound, R1 and R′ may form a 5 to 6 membered heteroaryl or heterocyclyl group optionally containing one additional heteroatom selected from N, O and S; A is —(CH2)3—; or a pharmaceutically acceptable salt thereof. |