Dichloromethane → HCID 10217697, compound

Participants

Reaction Steps

To a suspension of 3-(2-benzenesulfonylmethyl-thiazol-4-yl)-1H-quinolin-2-one-7-carboxylic acid (Example 8733 step (h), 0.1 g, 0.2 mmol) and 5 mL of anhydrous CH2Cl2 was added TEA (0.2 mL, 1.4 mmol) and pivaloyl chloride (0.1 mL, 0.8 mmol). The solution was stirred overnight at RT. The reaction was now homogenous and piperidine (0.5 mL, 5.1 mmol) was added. After 6 h, the reaction was diluted with H2O. The aqueous solution was extracted with EtOAc (6×). The combined EtOAc layers were washed with brine, dried over MgSO4, and concentrated in vacuo. The solid was suspended in a minimum of EtOAc and filtered to give a solid. MS m/z: 494.1 (M+1). Anal. Calc'd for C25H23N3O4S2.0.5H2O: C, 59.74; H, 4.81; N, 8.36. Found: C, 59.64; H, 4.82; N, 8.30.

Provenance & Evidence