A gamma-lactam diene of Formula I:
which is particularly useful as a medicament for the treatment of various disorders such as asthma, hypertension, osteoporosis, sexual dysfunction and fertility disorders.
introduction of diene groups at the omega-side chain have been synthesized and evaluated for their binding affinity for EP(2) and EP(4) receptors. An optimized analog (compound 9b) showed high potency and selectivity for the EP(4) receptor over other known receptors.