Expanding the medicinal chemistry toolbox: stereospecific generation of methyl group-containing propylene linkers
摘要:
Use of alkyl substituted propylene linkers as a strategy for fine-tuning the biological activity of medicinal agents requires ready access to these substrates. Herein, a general strategy is described for stereo specifically generating 18 chiral mono- and di-methylpropylene linkers. All twelve vicinal 1,2-propylene targets were generated from methyl-3-hydroxybutanoate and all 1,3-disubstituted targets from pentane-2,4-diol. (c) 2006 Elsevier Ltd. All rights reserved.
The relative configuration of a li-lactone isolated from the mandibular gland extracts of Calomyrmex sp. males has been determined to be (3SR,5RS,6SR)-3,5,6-trimethyltetrahydropyran-2H-one after the synthesis of the four possible racemates and comparison of their mass spectra and gas chromatographic properties with those reported in the literature for the natural product.