Triethylamine → HCID 67351564, compound

Participants

Reaction Steps

(S)-3-(9-Methylthio-6-oxo-2,3,3a,4-tetrahydro-1H,6H-5,8,10,10b-tetraazabenzo[e]azulen-5-yl)benzoic acid (364 mg, 0.982 mmol) obtained in Step 1 of Example 56 was dissolved in DMF (10 mL), and the mixture was stirred at room temperature for 3.5 hours after adding 1-ethyl-3-(3dimethylaminopropyl)carbodiimide hydrochloride (207 mg, 1.08 mmol), 1-hydroxybenzotriazole.monohydrate (166 mg, 1.08 mmol), methylamine hydrochloride (100 mg, 1.47 mmol), and triethylamine (0.204 mL, 1.47 mmol). The mixture was diluted by addition of ethyl acetate, and washed with a saturated aqueous sodium bicarbonate solution and saturated brine. The organic layer was dried over anhydrous magnesium sulfate and concentrated under reduced pressure. The resulting residue was then purified by silica gel column chromatography to give (S)—N-methyl-3-(9-methylthio-6-oxo-2,3,3a,4-tetrahydro-1H,6H-5,8,10,10b-tetraazabenzo[e]azulen-5-yl)benzamide (390 mg, 91%).

Provenance & Evidence