Patent ID: 8071583

Claim:
A compound of formula (I) wherein: R1 is ([1,5]naphthyridin-2-yl)methyl, (quinazolin-2-yl)methyl, (quinoxalin-6-yl)methyl, (4-methyl-quinazolin-2-yl)methyl, 2-cyano-benzyl, (3-cyano-quinolin-2-yl)methyl, (3-cyano-pyridin-2-yl)methyl, (4-methyl-pyrimidin-2-yl)methyl, or (4,6-dimethyl-pyrimidin-2-yl)methyl; and R2 is hydrogen, methyl, hydroxy, methoxy, cyano, carboxy, methoxycarbonyl, aminocarbonyl, methylaminocarbonyl, dimethylaminocarbonyl, (2-methoxyethyl)-aminocarbonyl, (2,2,2-trifluoroethyl)aminocarbonyl, cyclopropylaminocarbonyl, cyclobutylaminocarbonyl, (cyclopropylmethyl)aminocarbonyl, (cyclobutylmethyl)-aminocarbonyl, azetidin-1-ylcarbonyl, pyrrolidin-1-ylcarbonyl, piperidin-1-ylcarbonyl or morpholin-4-ylcarbonyl; or a tautomer, enantiomer, diastereomer, mixture or salt thereof.