| abstract |
PROCEDURE FOR THE PREPARATION OF SUBSTITUTED PYRROLIDINONES, IN GENERAL FORMULA (I), AND THEIR SALTS OF ADDITION OF PHYSIOLOGICALLY COMPATIBLE ACIDS. IT CONSISTS IN REACTIONING COMPOUNDS OF GENERAL FORMULA (II), IN WHICH R1 MEANS A PHENYL RADICAL THAT MAY BE REPLACED ONE OR TWICE TIMES WITH METHYL, METOXY, FLUORINE, CHLORINE, BROMINE OR TRIFLUOROMETILE; AND R2 MEANS HYDROGEN OR A RADICAL ALKYL OF A LINEAR OR BRANCHED CHAIN WITH 1 TO 4 ATOMS OF CARBON, WITH A ESTER OF CHLOROCARBONIC ACID, OF GENERAL FORMULA (III), IN WHICH AND MEANS A RADICAL ALKYL WITH 1 TO 4 CARBON ATOMS , A RADICAL BENZYL, PHENYL OR P-NITROPHENYL, TO OBTAIN A CARBAMATE. THEN SUCH CARBAMATE IS REACTED WITH AN AMINE, TO OBTAIN THE COMPOUND OF GENERAL FORMULA (I). |