反应详情

To 2.79 g of (S)-1-(N-(1-(ethoxycarbonyl)-3-phenylpropyl)-L-alanine and 1.75 g of (2S,3aR,7aS)-octahydro-1H-indol-2-carboxylic acid in 100 ml of acetonitrile and 5 ml DMF first 2.9 ml of triethylamine and then with stirring 3.8 g O-(benzotriazol-1-yl)-N,N,N′,N′-tetramethyluronium hexafluorophosphate were and the stirring of the mixture was continued for 30 minutes at room temperature. Finally, 300 ml of saturated NaCl solution was added and the mixture was extracted twice with 100 ml of ethyl acetate. After isolation of the product, which was done by the same way as in example 1, 3.96 g (92%) of trandolapril was obtained.

1. extractionthe mixture was extracted twice with 100 ml of ethyl acetate