1,4-Dioxane → HCID 44251163, compound

Participants

Reaction Conditions

Reaction Steps

A suspension of N-(7-chloro-2-methylpyrazolo[1,5-a]pyrimidin-5-yl)-4-(2-hydroxypropan-2-yl)benzamide (2F, 60 mg, 0.174 mmol), 4-isopropoxyphenylboronic acid (41 mg, 0.226 mmol), and 1,1′-bis(diphenylphosphino)ferrocene]dichloropalladium(II) (10 mg, 13.6 mmol) in 2:1 1,4-dioxane/saturated aqueous NaHCO3 (0.58 mL of 1,4-dioxane and 0.29 mL of saturated aqueous NaHCO3) was prepared in a 10 mL microwave reaction vessel and the sealed reaction vessel warmed to 110° C. for 10 minutes in a CEM microwave reactor. The reaction mixture was cooled to rt, diluted with methanol, filtered, and purified via preparative HPLC (70-70% MeCN/H2O gradient+0.01% TFA). Lyophilization of the combined fractions gave the titled compound as a yellow solid (37.6 mg, 49%). 1H NMR (DMSO-d6) δ: 11.07 (s, 1H), 8.03 (d, J=8.8 Hz, 2H), 7.96 (d, J=8.3 Hz, 2H), 7.90 (s, 1H), 7.55 (d, J=8.6 Hz, 2H), 7.08 (d, J=8.8 Hz, 2H), 6.30 (s, 1H), 4.71 (spt, 1H), 2.34 (s, 3H), 1.39 (s, 6H), 1.27 (d, 6H); ESI-MS: m/z 445.3 (M+H)+.

Provenance & Evidence