2'-Nitroacetophenone → 7-(2-Aminophenyl)-2-(4-phenoxyphenyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-3-carboxamide

関与物質

反応手順

The desired product was prepared from 1-(2-nitrophenyl)ethanone and 5-amino-3-(4-phenoxyphenyl)-1H-pyrazole-4-carbonitrile according to the procedures similar to those for 7-(3-aminophenyl)-2-(4-phenoxyphenyl)pyrazolo[1,5-a]pyrimidine-3-carbonitrile (step 4 to step 5), compound 2 (step 1 and 2) and compound 68 (step 8) under appropriate conditions recognized by one of ordinary skill in the art. 1H NMR (DMSO-d6) δ 7.48-7.44 (m, 2H), 7.40-7.33 (m, 2H), 7.15-7.09 (m, 1H), 7.05-6.97 (m, 4H), 6.92 (td, J=8.0, 1.2 Hz, 1H), 6.75 (br s, 1H), 6.64 (dd, J=8.0, 1.2 Hz, 1H), 6.46 (td, J=7.6, 1.2 Hz, 1H), 6.23 (dd, J=7.6, 1.2 Hz, 1H), 5.57-5.52 (m, 1H), 5.19 (br s, 2H), 3.27-3.17 (m, 1H), 2.93 (td, J=2.8, 12.0 Hz, 1H), 2.21-2.11 (m, 1H), 2.10-2.05 (m, 1H). MS (ESI) m/e [M+1]+ 426.0.

情報源と証拠