Starting from cyclopentadiene, two racemic mixtures of 4-aminocyclopentane-1,3-diols were prepared in 8
steps and characterized. Structure determination proved the anticipated trans-orientation of the two oxygen atoms with respect
to the plane of the ring. The fragment-like new compounds are small and hydrophilic, devoid of rotatable bonds, and
offer stereochemically defined attachment points for substituents. Thus, these platforms for diversity are suitable starting
points for the construction of combinatorial libraries of lead-like 4-amidocyclopentane-1,3-diols or natural product analogs.
As a proof of concept, cyclopentanoid anandamide analogs were prepared using these molecular platforms and
evaluated as tools for the investigation of unresolved issues in the molecular biology of anandamide.
Keywords: Cannabinoids, Cyclopentane, Diversity, Epoxide, Stereocontrolled Synthesis, Transport Inhibitors.
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