Ammonia → HCID 14994971, compound

Participants

Reaction Steps

23.04 g of 2-(2-bromopropionylamino)-3-(2-chlorobenzoyl)-6-cyclopropanecarbonyl-4,5,6,7-tetrahydro-thieno[2,3-C]pyridine was dissolved in 65 ml of 1,2-dichloroethane and 65 ml of ethyl acetate, into which ammonia gas was passed at -15° C. for 1 hour. This solution was placed in a sealed tube and reacted at 110° C. for 2 hours. In order to complete the reaction, ammonia was again passed into the solution at -15° C. for 30 minutes in the sealed tube where the reaction was continued at 110° C. for 1.5 hours. After ice-cooling, the reaction solution was charged into ice-cooled 2N hydrochloric acid, to which ethyl acetate was added, from which the resultant aqueous phase was collected. Sodium carbonate was added to the aqueous phase under ice-cooling conditions so that the pH was adjusted to 8, followed by extraction with chloroform under salting-out conditions. The extract was washed with a saturated saline solution and dried with anhydrous magnesium sulfate, followed by filtration and concentration to obtain 12.97 g (yield 64%) of the intended compound.

Provenance & Evidence