N-{3-[3-(2-{[3-(1,3-Oxazol-5-yl)phenyl]amino}-4-pyrimidinyl)pyrazolo[1,5-a]pyridin-2-yl]phenyl}-2-(2-thienyl)acetamide → 2,2,2-Trifluoro-N-[2-(methylsulfonyl)ethyl]-N-[(3-{[4-(2-{3-[(2-thienylacetyl)amino]phenyl}pyrazolo[1,5-a]pyridin-3-yl)-2-pyrimidinyl]amino}phenyl)methyl]acetamide

Participants

Reaction Conditions

Reaction Steps

A suspension of N-[(3-aminophenyl)methyl]-2,2,2-trifluoro-N-[2-(methylsulfonyl)ethyl]acetamide (68 mg, 0.21 mmol) and N-{3-[3-(2-chloro-4-pyrimidinyl)pyrazolo[1,5-a]pyridin-2-yl]phenyl}-2-(2-thienyl)acetamide (75 mg, 0.17 mmol) (see Example 2, Step B) in i-PrOH (3 mL) was acidified with 2 drops of 12 N HCl and heated in a microwave for 15 min. at 180° C. The reaction mixture was then diluted with EtOAc, washed with saturated aqueous NaHCO3, dried over Na2SO4, and adsorbed onto silica gel. The crude product was purified by column chromatography to generate the title compound in 63% yield. 1H NMR (400 MHz, CDCl3) δ 8.51 (d, J=6.8 Hz, 1H), 8.31 (d, J=8.6 Hz, 1H), 8.22 (d, J=5.3 Hz, 1H), 7.67-7.80 (m, 2H), 7.56 (d, J=8.0 Hz, 1H), 7.26-7.39 (m, 4H), 7.17 (t, J=7.7 Hz, 1H), 7.05 (s, 1H), 6.94 (t, J=6.9 Hz, 1H), 6.88 (d, J=8.4 Hz, 1H), 6.62-6.64 (m, 2H), 6.53 (s, 1H), 4.68 (s, 2H), 3.96 (s, 2H), 3.72-3.75 (m, 2H), 3.16-3.24 (m, 2H), 2.90 (s, 3H). ES-LC/MS m/z=734 [M+H]+.

Provenance & Evidence