p. 1939 - 1941
(2007/10/02)p. 38 - 43
(2007/10/02)5-amino-2-chloro-6-methyl-pyridine-3,4-dicarbonitrile
2-chloro-6-methyl-5-nitropyridine-3,4-dicarbonitrile
2-hydroxy-6-methyl-5-nitro-pyridine-3,4-dicarbonitrile
2,4-dioxo-valeric acid amide
3-cyano-2-hydroxy-6-methyl-isonicotinic acid amide