Vv. Zakharychev et al., Synthesis of derivatives of 2-hydroxyimino- and 2-alkoxyimino-3-(acylhydrazono)butanoic acids, RUSS CHEM B, 48(3), 1999, pp. 495-500
Esters and N-methylamides of 2-hydroxyimino- and 2-alkoxyimino-3-(acylhydra
zono)butanoic acids were synthesized by condensation of acyl hydrazines wit
h the corresponding alkyl 2-hydroxyimino- and 2-alkoxyimino-3-oxobutanoates
and N-methyl-2-methoxyimino-3-oxobutanamide. The compounds obtained are an
alogs of strobilurins, fungicidal antibiotics.