5-Amino-3-tert-butyl-1-(2-methylpyridine-5-yl)pyrazole → 1-(3-tert-butyl-1-(6-methylpyridin-3-yl)-1H-pyrazol-5-yl)-3-(2-fluoro-4-(3-oxo-3,4-dihydropyrido[3,2-b]pyrazin-8-yloxy)phenyl)urea

Participants

Reaction Steps

Method F4 was used with 65 mg (0.17 mmol) of phenyl 2-fluoro-4-(3-oxo-3,4-dihydropyrido[3,2-b]pyrazin-8-yloxy)phenylcarbamate and 45 mg (0.2 mmol) of 3-tert-butyl-1-(6-methylpyridin-3-yl)-1H-pyrazol-5-amine (Regan, J. et al., J. Med. Chem. 2002, 45, 2994-3008). Obtained 15 mg, 17% yield of the title compound.

Provenance & Evidence