Triethylamine → 4-(3-{(8-ethyl-4H-benzo[1,3]dioxin-6-yl)-[4-(5-methyl-[1,2,4]oxadiazol-3-yl)phenylamino]methyl}-5-oxo-4,5-dihydro-[1,2,4]triazol-1-yl)thiazole-5-carboxylic acid methyl ester

Participants

Reaction Conditions

Reaction Steps

After adding 71 mg of 4-hydrazinothiazole-5-carboxylic acid methyl ester (Example (162c)) and 300 μl of triethylamine to a solution of 198 mg of [2-(8-ethyl-4H-benzo[1,3]dioxin-6-yl)-2-[4-(5-methyl-[1,2,4]oxadiazol-3-yl)phenylimino]-1-methylsulfanylethylidene]carbamic acid methyl ester (Example (27b)) in 6 ml of THF, the mixture was stirred overnight at 60° C. under a nitrogen atmosphere. The reaction mixture was then concentrated. The residue was dissolved in 6 ml of DMF, and then 0.3 ml of triethylamine was added and the mixture was stirred at 80° C. for 6 hours.

Provenance & Evidence