Trifluoroacetic acid → 3-(6-Fluoro-1,3-benzoxazol-2-yl)-5-[1-(4-piperidyl)pyrazol-4-yl]pyrazin-2-amine

Participants

Reaction Steps

Using analogous procedures to those described in Example 17, tert-butyl 4-[4-[5-amino-6-(6-fluoro-1,3-benzoxazol-2-yl)pyrazin-2-yl]pyrazol-1-yl]piperidine-1-carboxylate (100 mg) was reacted with TFA to give 3-(6-fluoro-1,3-benzoxazol-2-yl)-5-[1-(4-piperidyl)pyrazol-4-yl]pyrazin-2-amine (46 mg). NMR Spectrum: (400 MHz, MeOD) 8.60 (s, 1H), 8.35 (s, 1H), 8.20 (s, 1H), 7.90 (dd, 1H), 7.60 (dd, 1H), 7.30 (dd, 1H), 4.20 (m, 1H), 3.70 (m, 1H), 3.30 (m, 2H), 2.50 (m, 4H); Mass spectrum: M+H+ 380

Provenance & Evidence