Undec-10-enoic Acid in the Synthesis of Macroheterocycles Containing Hydrazide and Ester Fragments

Four potentially biologically active 31-, 32-, and 33-membered macroheterocycles with ester and hydrazide fragments have been synthesized by [1 + 1]-condensation of ethane-1,2-diyl bis(10-oxoundecanoate) with malonic, glutaric, L-(+)-tartaric, and pyridine-2,6-dicarboxylic acid dihydrazides. The product structure has been confirmed by IR, NMR, and mass spectra.