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(S,E)-N-[1-(3-heteroarylphenyl)ethyl]-3-(2-fluorophenyl)acrylamides: synthesis and KCNQ2 potassium channel opener activity.

Bioorganic & medicinal chemistry letters (2004-12-18)
Alexandre L'Heureux, Alain Martel, Huan He, Jie Chen, Li-Qiang Sun, John E Starrett, Joanne Natale, Steven I Dworetzky, Ronald J Knox, David G Harden, David Weaver, Mark W Thompson, Yong-Jin Wu
RESUMEN

Replacement of the morpholinyl moiety in (S,E)-N-[1-(3-morpholinophenyl)ethyl]-3-phenylacrylamide (1) with heteroaryl groups led to the identification of (S,E)-N-1-[3-(6-fluoropyridin-3-yl)phenyl]ethyl-3-(2-fluorophenyl)acrylamide (5) as a potent KCNQ2 potassium channel opener. Among this series of heteroaryl substituted acrylamides, (S,E)-N-1-[3-(1H-pyrazol-1-yl)phenyl]ethyl-3-(2-fluorophenyl)acrylamide (9) exhibits balanced potency and efficacy. The syntheses and the KCNQ2 opener activity of this series of acrylamides are described.

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Sigma-Aldrich
2-Fluorocinnamic acid, 98%