Methanesulfonic Acid → HCID 86677089, compound

Participants

Reaction Steps

N-tert-butyl-6-(2,4-difluorophenyl)-2-(pyridin-3-yl)quinazolin-4-amine (1.51 g, 3.87 mmol) was dissolved in CH2Cl2/MeOH (20 mL/20 mL). Methanesulfonic acid (0.251 mL, 3.87 mmol) was added to the solution. The volatiles were evaporated in vacuo. The resultant residue was crystallized from EtOH (30 mL) to give 1.35 g of N-tert-butyl-6-(2,4-difluorophenyl)-2-(pyridin-3-yl)quinazolin-4-amine methanesulfonate as a light yellow powder (72%), LCMS m/z=391 (M+1) (Method D) (Retention time=1.91 min). 1H NMR (300 MHz, DMSO) δ 9.52 (s, 1H), 9.01-8.83 (m, 2H), 8.75 (s, 1H), 8.58 (s, 1H), 8.09 (d, J=7.2 Hz, 1H), 8.03-7.85 (m, 2H), 7.83-7.68 (m, 1H), 7.59-7.43 (m, 1H), 7.33 (t, J=7.91 Hz, 1H), 2.31 (s, 3H), 1.66 (s, 9H).

Provenance & Evidence