Replacement of the hydroxy cyclopentanone ring in PGE2 with chemically more stable heterocyclic rings and substitution of the unsaturated α-alkenyl chain with a metabolically more stable phenethyl chain led to the development of potent and selective analogs of PGE2. Compound 10f showed the highest potency and selectivity for EP4 the receptor.
[Wouters, Felipe C.; Rocha, Daniele F. O.; Goncalves, Caroline C. S.; MacHado, Glauco; Marsaioli, Anita J. Journal of Natural Products, 2013 , vol. 76, # 9 p. 1559 - 1564]
[Wouters, Felipe C.; Rocha, Daniele F. O.; Goncalves, Caroline C. S.; MacHado, Glauco; Marsaioli, Anita J. Journal of Natural Products, 2013 , vol. 76, # 9 p. 1559 - 1564]