The carbon-carbon double bond offers a possibility to incorporate a cyclopropane ring into a molecule. The special electronic
nature of the cyclopropane ring can significantly change the electronic and biological properties of the new derivatives. Herein we present
natural compounds containing a fused cyclopropane ring and natural compounds condensed with a cyclopropane ring synthetically.
Keywords: Biological activity, cyclopropanation, cyclopropane ring, natural compounds.
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