3-(3,4-dimethoxyphenyl)-4,5,6,7-tetrahydro-1H-pyrazolo[4,3-c]pyridine

1-acetyl-3-(4-fluorobenzoyl)piperidin-4-one

3-(4-Methylphenyl)-4,5,6,7-tetrahydro-1H-pyrazolo[4,3-c]pyridine