The present invention belongs to the field of
medicinal chemistry and relates to the application of N-substituted benzylpyrazole derivatives as allosteric modulators, antagonists, and agonists of the β2-
adrenergic receptor. The present invention uses
acetophenone or
acetophenone with different substituents as raw materials, undergoes a
Claisen condensation reaction, cyclization, and then substitution and
hydrolysis reactions, followed by an
amide coupling reaction to finally obtain a series of new
pyrazole derivatives with the structure shown in formula (1), where R1 is a
hydrogen atom, a
halogen atom, a nitro group, or a methoxy group; R2 is a
hydrogen atom, a
halogen atom, a cyano group, a nitro group, or a methoxy group; and R3 is a
halogen atom.
Functional activity screening of the
G protein-dependent signaling pathway was performed on all synthesized compounds, and it was found that these new derivatives can act as agonists, positive allosteric modulators (PAMs), antagonists, and negative allosteric modulators (NAMs) of the β2-
adrenergic receptor. #imgabs0#