| abstract |
A pyridinylacetonitrile of formula (Ib) in all tautomeric formulas: where R1 and / or R2 is H or C1-C3 alkyl L is an amino group of formula -NR3R4 where R3 is H and R4 is selected from the group consisting of C1-alkyl -C6 straight or branched, 3-8 membered cycloalkyl, 3-8 membered heterocycloalkyl, C1-C6 arylalkyl, C1-C6 heteroarylalkyl, C1-C6 cycloalkylalkyl, C1-C6 heterocycloalkylalkyl. |