Cis-3,5-dimethyl-3,5-piperidinedicarboxylic acid, an amino diacid variant of Kemp's triacid
摘要:
Cis-3,5-dimethyl-3,5-piperidinedicarboxylic Acid (3) and several of its derivatives have been synthesized starting from 3,5-pyridinedicarboxylic acid. The H-1 NMR spectra indicate that these compounds assume a single conformation having the two carbonyl substituents in axial positions.