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Discovery of highly potent dual EP(2) and EP(3) agonists with subtype selectivity
Akihiro Kinoshita1, Masato Higashino1, Yoshiyuki Aratani1
1Medicinal Chemistry Research Laboratories, Ono Pharmaceutical Co., Ltd, 3-1-1 Sakurai, Shimamoto-cho, Mishima-gun, Osaka 618-8585, Japan.
Abstract:
The cyclic carbamate derivatives, 2-{[2-((4S)-4-{(1E,3R)-8-fluoro-3-hydroxy-4,4-dimethyl-1-octenyl}-2-oxo-1,3-oxazolidin-3-yl)ethyl]sulfanyl}-1,3-thiazole-4-carboxylic acid (5) and 2-{[2-((4S)-4-{(1E,3R)-3-[1-(4-fluorobutyl)cyclobutyl]-3-hydroxy-1-propenyl}-2-oxo-1,3-oxazolidin-3-yl)ethyl]sulfanyl}-1,3-thiazole-4-carboxylic acid (7) were identified as the first potent dual EP2 and EP3 agonists with selectivity against the EP1 and EP4 subtypes. Compounds 5 and 7 demonstrated highly potent dual EP2 and EP3 agonist activity with EC50 values of 10nM or less. In addition, these compounds possess structural features distinct from natural prostaglandins, such as a cyclic carbamate moiety, a dimethyl or cyclobutyl group and a terminal fluorine atom.
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