Ethyl Acetate → HCID 59654999, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of trifluoro-methanesulfonic acid 1-benzyl-6-chloro-3-(3-methyl-isoxazol-5-yl)-2-oxo-1,2-dihydro-quinolin-4-yl ester (40 mg, 0.080 mmol), 4-ethylbenzeneboronic acid (14.4 mg, 0.096 mmol), Pd(PPh3)4 (9.2 mg, 0.0080 mmol) and Na2CO3 (80 ul, 0.16 mmol, 2.0 M)in 1 ml of 1,4-dioxane was stirred at 100° C. for 1 h, then cooled to rt. Treated with 40 ml of EtOAc, the mixture was washed with H2O (2×10 ml), brine (10 mL) and dried (Na2SO4). Removal of the solvent under reduced pressure followed by flash chromatography of the residue on silica gel (25% EtOAc/hexane) gave 29.5 mg (81%) of product as a white solid: 1H-NMR (CDCl3; 400 MHz) δ7.41 (dd, 1H, J=9.0, 2.2 Hz), 7.24-7.38 (m, 8H), 7.15 (d, 2H, J=8.0 Hz), 6.48 (s, 1H), 5.64 (s, 2H), 3.71 (s, 1H), 2.74 (q, 2H, J=7.6 Hz), 2.23 (s, 3H), 1.31 (t, 2H, J=7.6 Hz),. Mass spectrum (ESI, m/z): Calcd. for C28H23ClN2O2, 455.1 (M+H), found 455.1.

Provenance & Evidence