New derivatives of glutamic and aspartic acids, a method of preparing them, and their use as drugs for enhancing memory and learning

摘要

PCT No. PCT/EP94/00604 Sec. 371 Date Sep. 11, 1995 Sec. 102(e) Date Sep. 11, 1995 PCT Filed Mar. 2, 1994 PCT Pub. No. WO94/20454 PCT Pub. Date Sep. 15, 1994Compounds represented by general formula (I) and (II), in which r is 1 or 2, R2 and R3 are selected independently from H, CH3, C2H5 and CHO, provided that R2 and R3 are not simultaneously CHO, and in which R1 is selected from: an aminoalkyl adamantyl group, a monocyclic aminoalkyl group, a dicyclic aminospiro group, a dicyclic amino group (orthofused), a dicyclic amino group, and azacycloalkyl group, an azadicyclic group (orthofused), a dicyclic azaspiro group, and azadicyclic group, and azacycloalkyl group, and a linear or branched aminoalkyl group.