5-((Tert-butoxycarbonyl)amino)-2-(2,6-difluorophenyl)thiazole-4-carboxylic acid → HCID 71539920, compound

Participants

Reaction Steps

Following the procedure for Example 112, reacting (S)-tert-butyl 4-(4-amino-1-methyl-1H-pyrazol-5-yl)-3-ethylpiperazine-1-carboxylate and 5-(tert-butoxycarbonylamino)-2-(2,6-difluorophenyl)thiazole-4-carboxylic acid from Example 25 gave 113 as a white solid (27 mg, 19% over two steps). 1H NMR (400 MHz, CDCl3) δ 8.68 (s, 1H), 7.91 (s, 1H), 7.31 (t, J=7.7 Hz, 1H), 7.03 (t, J=9.2 Hz, 2H), 6.20 (s, 2H), 3.77 (s, 3H), 3.24-3.14 (m, 2H), 3.12-2.93 (m, 4H), 2.60 (t, J=10.8 Hz, 1H), 1.48-1.28 (m, 1H), 1.28-1.16 (m, 1H), 0.79 (t, J=7.6 Hz, 3H). Alkyl NH not observed. LCMS (ES+) m/z 448 (M+1).

Provenance & Evidence