Patent ID: 7138411

Claim:
A compound of Formula I wherein X is selected from O, S, or NR a ; wherein R is selected from carboxyl, aminocarbonyl, C 1 –C 6 -alkylsulfonylaminocarbonyl and C 1 –C 6 -alkoxycarbonyl; wherein R 1 is selected from alkyl, aralkyl, cycloalkyl or aryl optionally substituted with one or more radicals selected from alkylthio, nitro and alkylsulfonyl; wherein R 2 is one or more radicals independently selected from hydrido, halo, aralkyl, alkoxy, aryloxy, heteroaryloxy, aralkyloxy, heteroaralkyloxy, haloalkyl, haloalkoxy, alkylamino, arylamino, aralkylamino, heteroarylamino, heteroarylalkylamino, nitro, amino, aminosulfonyl, alkylaminosulfonyl, arylaminosulfonyl, heteroarylaminosulfonyl, aralkylaminosulfonyl, heteroaralkylaminosulfonyl, heterocyclosulfonyl, alkylsulfonyl, optionally substituted aryl, optionally substituted heteroaryl, aralkylcarbonyl, heteroarylcarbonyl, arylcarbonyl, aminocarbonyl and alkylcarbonyl; and or wherein R 2 together with ring A forms radical; or an isomer or pharmaceutically acceptable salt thereof.