| abstract |
The present invention relates to compounds of Formula (I): wherein—X and Y represent O, S, NR′; R n represents alkyl, aryl, OR 1 , NH 2 , SR 1 , NR 1 R 2 . wherein R 1 , R 2 =H, alkyl, phenyl, aryl, OCOR 3 , SCOR 3 , NHCOR 3 , NR 1 COR 3 , etc. (wherein R 3 represents alkyl, phenyl, aryl, heteroaryl); R′ and R″ represent H, alkyl, phenyl, substituted phenyl, phenyloxy, substituted phenyloxy, amino, mono substituted amino, disubstituted amino, aryl, heteroaryl, aryloxy, heteroaryloxy, alkoxy, thioalkyl, thioalkyloxy, halo and a process for preparing the same. |