Abstract
A series of γ-lactam prostaglandin E(1) analogs bearing a 16-phenyl moiety in the ω-chain and aryl moiety in the α-chain were synthesized and biologically evaluated. Among the tested compounds, γ-lactam PGE analog 3 designed as a structural hybrid of 1 and 2 was discovered as the most optimized EP2/EP4 dual agonist with excellent subtype-selectivity (K(i) values: mEP2=9.3 nM, mEP4=0.41 nM). A structure-activity relationship study is presented.
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