p. 5061 - 5074
(2015/08/03)p. 2837 - 2846
(2007/10/02)p. 3055 - 3056
(2007/10/02)2-(hydroxymethyl)isonicotinic acid
2-(ethoxycarbonyl)isonicotinic acid
pyridine-2,4-dicarboxylic acid
2-methyl-1-oxy-isonicotinic acid ethyl ester
ethyl 2-methylpyridine-4-carboxylate