Organiske heterocykliske forbindelser, der indeholder en imidazolring fusioneret til en pyrimidinring. Imidazol er en femleddet ring med tre carbonatomer og to nitrogenatomer; pyrimidin er en seksleddet ring med fire carbonatomer og to nitrogenatomer.
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MedChemExpress Acefylline (Theophyllineacetic acid), a xanthine derivative, is an adenosine receptor antagonist. Acefylline is a peptidylarginine deiminase (PAD) activator. Acefylline is also a bronchodilator, which inhibits rat lung cAMP phosphodiesterase isoenzymes.
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MedChemExpress Xanthine, a plant alkaloid found in tea, coffee, and cocoa, is a mild stimulant of the central nervous system. Xanthine also acts as an intermediate product on the pathway of purine degradation.
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MedChemExpress 3-Methylxanthine, a xanthine derivative, is a cyclic guanosine monophosphate (GMP) inhibitor, with an IC50 of 920 μM on guinea-pig isolated trachealis muscle.
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