Abstract
2-(3-(Naphthalen-2-yl)propanamido)cyclohex-1-enecarboxylic acid and its 6-hydroxynaphthalen-2-yl analogue are well-known hydroxyl-carboxylic acid (HCA) receptor HCA2 agonists. A series of novel aryl derivatives of 2-amidocyclohex-1-ene carboxylic acid that contained rigidity elements, such as an E-double bond, triple bond, and trans or cis-substituted cyclopropane rings, instead of the saturated ethane linker in the amide part of the molecules were designed and synthesized, and the derivatives’ potency for the activation of HCA1, HCA2, and HCA3 receptors by 3′–5′-cyclic adenosine monophosphate (cAMP) assay were evaluated. The SAR studies revealed that the rigidifying of appropriate molecules enabled modulation of the potency and selectivity of the HCA2 receptor activation.
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