diethyl acetylmalonate
3-methyl-5-oxo-2,5-dihydro-isoxazole-4-carboxylic acid ethyl ester
3-methyl-4,5-bis-[N'-(toluene-4-sulfonyl)-hydrazino]-isoxazolo[4,5-c]pyridine
toluene-4-sulfonic acid N'-(6-chloro-3-methyl-isoxazolo[4,5-c]pyridin-4-yl)-hydrazide
4,6-dichloro-3-methylisoxazolo<4,5-c>pyridine
5-benzylidenehydrazino-3-methyl-isoxazole-4-carboxylic acid ethyl ester
3-methyl-5-[N'-(toluene-4-sulfonyl)-hydrazino]-isoxazole-4-carboxylic acid ethyl ester