反应详情

601 g (3.0 mmol) of methyl 2-acetyloctanoate (Example 18A) are hydrolysed to 2-acetyloctanoic acid according to Example 19A. The acid in 20 ml of dichloromethane is reacted analogously to Example 23A with 1.08 g (8.0 mmol) of 1-hydroxy-1H-benzotriazole, 1.62 g (16.0 mmol) of 4-methylmorpholine, 1.53 g (8.0 mmol) of N′-(3-dimethylaminopropyl)-N-ethylcarbodiimide hydrochloride and 870 mg (3.0 mmol) of 6-(1-aminoethyl)-3-(3,4-methoxybenzyl)-1,2,4-triazin-5(4H)-one (Example 12A) to give 2-acetyl-N-{1-[3-(3,4-dimethoxybenzyl)-5-oxo-4,5-dihydro-1,2,4-triazin-6-yl]ethyl}octanamide.