Patent ID: 7205411

Claim:
A compound of formula but excluding 3-amino-4-chloro-6-methyl-2-(2-phenylethynyl)pyridine, wherein R 1 is methyl R 2 and R 3 are independently selected from hydrogen, halogen, nitro, C 1 –C 6 -alkyl; R 6 and R 7 which may be the same or different are hydrogen or a group of formula: —X—R 8 wherein X is ═CH—N(R 8 ) 2 and R 8 is hydrogen, C 1 –C 6 -alkyl, halo-C 1 –C 6 -alkyl, aryl, aryl-C 1 –C 6 -alkyl, heteroaryl or heteroaryl-C 1 –C 6 -alkyl; R 5 represents a group of formula wherein R 9 , R 10 , R 11 , R 12 and R 13 independently are hydrogen, halogen, cyano, nitro, C 1 –C 6 -alkyl, halo-C 1 –C 6 -alkyl, C 1 –C 8 -alkoxy, carboxy-C 1 –C 6 -alkyl or carboxyaryl; R 14 and R 15 independently are as defined for R 9 –R 13 above; or a pharmaceutically acceptable salt of such compound of such compounds.