Triethylamine → HCID 59565293, compound

Participants

Reaction Steps

To a mixture containing (3-ethynyl-7-fluoro-8-methyl-quinolin-6-yloxy)-methylsulfanyl-acetic acid (250 mg) from Step 8, aza-HOBT (116 mg), TBTU (273 mg) and Et3N (0.32 ml) in CH3CN (12 ml), tert-butyl amine was added at room temperature, under a nitrogen atmosphere. The resulting brown suspension was stirred 1 hour at room temperature then poured into aqueous NH4Cl solution and extracted with ethyl acetate. The combined organic layers were washed with brine, dried over sodium sulphate anhydrous, filtered and concentrated under reduced pressure. The crude residue was purified by chromatography on silica gel (cyclohexane/ethyl acetate) to give N-tert-butyl-2-(3-ethynyl-7-fluoro-8-methyl-quinolin-6-yloxy)-2-methylsulfanyl-acetamide (201 mg) as white solid. 1H NMR (CDCl3) δ ppm: 8.88 (1H, d); 8.17 1H, d); 7.17 (1H, d); 6.64 (1H, br s); 5.59 (1H, s); 3.27 (1H, s); 2.69 (3H, d); 2.18 (3H, s); 1.44 (9H, s).

Provenance & Evidence