1,2,4-Piperazinetricarboxylic acid, 1-(9H-fluoren-9-ylmethyl) 4-(phenylmethyl) ester, (R)-

N~4~-(3-Chloro-4-morpholinophenyl)-6-cyclopropyl-1,3-dimethyl-1H-pyrazolo[3,4-B]pyridine-4-carboxamide

(3,6-Dimethyl-1-propyl-1H-pyrazolo[3,4-B]pyridin-4-YL)[4-(phenylsulfonyl)piperazino]methanone

1-Ethyl-6-phenyl-N-2-pyridinyl-1H-pyrazolo[3,4-b]pyridine-4-carboxamide

N-(2,6-dimethylphenyl)-1-methyl-6-phenyl-1H-pyrazolo[3,4-b]pyridine-4-carboxamide

1-Butyl-6-cyclopropyl-3-methyl-N-[1-[(2-methylphenyl)methyl]-1H-1,2,4-triazol-3-yl]-1H-pyrazolo[3,4-b]pyridine-4-carboxamide

[1,3-dimethyl-6-(4-methylphenyl)-1H-pyrazolo[3,4-b]pyridin-4-yl](2-methyl-2,3-dihydro-1H-indol-1-yl)methanone

(4-Benzylpiperidino)(3,6-dimethyl-1-propyl-1H-pyrazolo[3,4-B]pyridin-4-YL)methanone

N-(2-Chloro-3-pyridinyl)-1-(4-fluorophenyl)-3,6-dimethyl-1H-pyrazolo[3,4-b]pyridine-4-carboxamide

[6-(4-Methoxyphenyl)-1-methylpyrazolo[3,4-b]pyridin-4-yl]-(2-methylpiperidin-1-yl)methanone

N-(2-chlorophenyl)-3,6-dimethyl-1-phenylpyrazolo[3,4-b]pyridine-4-carboxamide