Replacement of the hydroxy cyclopentanone ring in PGE(2) with chemically more stable heterocyclic rings and substitution of the unsaturated alpha-alkenyl chain with a metabolically more stable phenethyl chain led to the development of potent and selective analogs of PGE(2). Compound 10f showed the highest potency and selectivity for EP(4) the receptor.

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http://dx.doi.org/10.1016/j.bmcl.2007.09.074DOI Listing

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