Tetrahydrofuran → N-((1S)-1-cyclohexylethyl)-4-(2-propynyloxy)-3-methoxybenzamide

Participants

Reaction Steps

To a mixture of 10 ml of THF and 0.30 g of 3-methoxy-4-(2-propynyloxy)benzoyl chloride were added 0.21 g of (1S)-1-(cyclohexyl)ethylamine and 0.20 g of triethylamine in order at room temperature. The mixture obtained was stirred at room temperature for 4 hours. Then, ethyl acetate was added to the reaction mixture and the mixture was filtered through Celite. The filtrate was concentrated under reduced pressure. The residue was washed with methyl tert-butyl ether and hexane to obtain 0.33 g of N-((1S)-1-cyclohexylethyl)-4-(2-propynyloxy)-3-methoxybenzamide (hereinafter, described as the compound 21 of the present invention) represented by the formula:

Provenance & Evidence