Isonicotinic Acid → HCID 23144222, compound

Participants

Reaction Conditions

Reaction Steps

2-Amino-5-(1-ethyl-2-oxo-1,2-dihydropyridin-4-yl)-4-(2-furyl)thiazole (167 mg, 0.582 mmol) obtained in Step 1 was dissolved in DMF (8 mL), and isonicotinic acid (143 mg, 1.16 mmol), PyBOP (664 mg, 1.28 mmol) and triethylamine (0.356 mL, 2.55 mmol) were added thereto, followed by stirring at 80° C. for 1 hour. The reaction mixture was poured into water, followed by extraction with ethyl acetate. The organic layer was washed with a saturated aqueous solution of sodium chloride and dried over anhydrous magnesium sulfate, and then the solvent was distilled away under reduced pressure. The resulting residue was purified through silica gel column chromatography (chloroform:methanol=17:1), followed by reslurrying with a mixed solvent of methanol and diethyl ether to afford the entitled Compound 124 (83.5 mg, 37%) as a pale brown solid.

Provenance & Evidence