International Journal of Chemistry
Synthesis of \beta-Lactam Fused Enediynes by Intramolecular Kinugasa
Abstract
\beta-lactam fused enediynes have been successfully synthesized by intramolecular Kinugasa reaction in moderate yields.
DSC studies indicated significant influence of the \beta-lactam ring upon the reactivity of enediynes. None of the \beta-lactam
fused enediynes (under ring opening conditions) as well as the 11-membered monocyclic enediyne as the tosylate salt
showed any cleavage of plasmid DNA. Interestingly, the 10-membered enediyne as the tosylate salt cleaved both single
and double strands of plasmid DNA at micromolar concentration.
DSC studies indicated significant influence of the \beta-lactam ring upon the reactivity of enediynes. None of the \beta-lactam
fused enediynes (under ring opening conditions) as well as the 11-membered monocyclic enediyne as the tosylate salt
showed any cleavage of plasmid DNA. Interestingly, the 10-membered enediyne as the tosylate salt cleaved both single
and double strands of plasmid DNA at micromolar concentration.
This work is licensed under a Creative Commons Attribution 3.0 License.
International Journal of Chemistry ISSN 1916-9698 (Print) 1916-9701 (Online)
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