11β prostaglandin e2

11β-PGE2 is the C-11 epimer of PGE2. It is a moderate inhibitor of PGE2 binding to rat hypothalamic membranes with a Ki value of 53 nM.[1] 11β-PGE2 also stimulates bone resorption in rats at concentrations of 10-8 to 10-6 M which is similar to PGE2.2 11β-PGE2 inhibits PGE2 binding to the prostaglandin transporter protein with a Ki of 56 nM.[3] .

11-deoxy Prostaglandin E2 (11-deoxy PGE2) is a stable, synthetic analog of PGE2 . In contrast to PGE2 which has bronchodilation effects, 11-deoxy PGE2 is a powerful bronchoconstrictor and contracts human respiratory tract smooth muscle with potencies ranging from 5 to 30 times higher than PGF2α .

11-Deoxy-16,16-dimethyl Prostaglandin E2 (11-deoxy-16,16-dimethyl PGE2) is a stable synthetic analog of Prostaglandin E2 (PGE2), acting as an agonist for both EP2 and EP3 receptors. It effectively inhibits gastric acid secretion and ulcer formation in rats, with ED50 values of 1 mg kg and 0.021 mg kg, respectively. This compound is also 900 times more potent than Prostaglandin F2α (PGF2α) in inducing contraction of human respiratory tract smooth muscle in vitro.