Patent ID: 7534891

Claim:
A compound of the formula 1, wherein: R 1 is selected from the group consisting of hydrogen, lower alkyl, lower alkenyl, cycloalkyl, lower cycloalkylalkyl, wherein the cycloalkyl ring may be unsubstituted or substituted by one or two groups selected from the group consisting of lower alkyl, lower hydroxyalkyl and lower alkoxyalkyl, lower hydroxyalkyl, lower alkoxyalkyl, and lower heterocyclylalkyl, wherein the heterocyclyl ring may be unsubstituted or substituted by one or two groups selected from lower alkyl and halogen; R 2 is selected from the group consisting of hydrogen, lower alkyl, lower alkenyl, cycloalkyl, lower cycloalkylalkyl, wherein the cycloalkyl ring may be unsubstituted or substituted by one or two groups selected from the group consisting of lower alkyl, lower hydroxyalkyl and lower alkoxyalkyl, lower hydroxyalkyl, lower alkoxyalkyl, and lower heterocyclylalkyl, wherein the heterocyclyl ring may be unsubstituted or substituted by one or two groups selected from lower alkyl and halogen; or R 1 and R 2 together with the nitrogen atom to which they are attached form a 4-, 5-, 6- or 7-membered saturated or partly unsaturated heterocyclic ring optionally containing a further heteroatom selected from nitrogen, oxygen or sulfur, said saturated or partly unsaturated heterocyclic ring being unsubstituted or substituted by one, two or three groups independently selected from the group consisting of lower alkyl, halogen, halogenalkyl, cyano, hydroxy, hydroxyalkyl, lower alkoxy, oxo, phenyl, benzyl, pyridyl and carbamoyl; A is selected from wherein m is 0, 1 or 2; R 3 is lower alkyl; n is 0, 1 or 2; R 4 is lower alkyl; p is 0, 1 or 2; q is 0, 1 or 2; R 5 is hydrogen or lower alkyl; and pharmaceutically acceptable salts thereof.