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Chemical Compound Review

AC1NUOQV     5-methyl-6-[2-(4-oxo-1- cyclohexa-2,5...

Synonyms: UDCG-212, Udcg 212, UD-CG-212-Cl, SureCN7322526, SureCN11290551, ...
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Disease relevance of 5-methyl-6-[2-(4-oxo-1-cyclohexa-2,5-dienylidene)-1,3-dihydrobenzoimidazol-5-yl]-4,5-dihydro-2H-pyridazin-3-one

  • We studied the influence of acidosis on the positive inotropic effect of UD-CG 212 Cl (4,5-dihydro-6-[2-(4-hydroxyphenyl)-1H-benzimidazole-5-yl]-5-methyl-3(2H)-pyridazinone), an active metabolite of pimobendan, in canine ventricular trabeculae loaded with aequorin [1].

High impact information on 5-methyl-6-[2-(4-oxo-1-cyclohexa-2,5-dienylidene)-1,3-dihydrobenzoimidazol-5-yl]-4,5-dihydro-2H-pyridazin-3-one


Chemical compound and disease context of 5-methyl-6-[2-(4-oxo-1-cyclohexa-2,5-dienylidene)-1,3-dihydrobenzoimidazol-5-yl]-4,5-dihydro-2H-pyridazin-3-one

  • The maximal inotropic effect of UD-CG 212 Cl was 18% of the maximal response to isoproterenol (ISO(max)) in association with an increase in Ca(2+) transients of 7% of ISO(max) in the control, while they are 8 and 6% of ISO(max) under acidosis, respectively [1].

Biological context of 5-methyl-6-[2-(4-oxo-1-cyclohexa-2,5-dienylidene)-1,3-dihydrobenzoimidazol-5-yl]-4,5-dihydro-2H-pyridazin-3-one


Anatomical context of 5-methyl-6-[2-(4-oxo-1-cyclohexa-2,5-dienylidene)-1,3-dihydrobenzoimidazol-5-yl]-4,5-dihydro-2H-pyridazin-3-one


Associations of 5-methyl-6-[2-(4-oxo-1-cyclohexa-2,5-dienylidene)-1,3-dihydrobenzoimidazol-5-yl]-4,5-dihydro-2H-pyridazin-3-one with other chemical compounds


  1. Decrease in Ca(2+)-sensitizing effect of UD-CG 212 Cl, a metabolite of pimobendan, under acidotic condition in canine ventricular myocardium. Takahashi, R., Shimazaki, Y., Endoh, M. J. Pharmacol. Exp. Ther. (2001) [Pubmed]
  2. Contribution of cAMP-phosphodiesterase inhibition and sensitization of the contractile proteins for calcium to the inotropic effect of pimobendan in the failing human myocardium. Böhm, M., Morano, I., Pieske, B., Rüegg, J.C., Wankerl, M., Zimmermann, R., Erdmann, E. Circ. Res. (1991) [Pubmed]
  3. A highly specific benzimidazole pyridazinone reverses phosphate-induced changes in cardiac myofilament activation. Westfall, M.V., Wahler, G.M., Solaro, R.J. Biochemistry (1993) [Pubmed]
  4. Phosphodiesterase inhibition in ventricular cardiomyocytes from guinea-pig hearts. Bethke, T., Meyer, W., Schmitz, W., Scholz, H., Stein, B., Thomas, K., Wenzlaff, H. Br. J. Pharmacol. (1992) [Pubmed]
  5. Electrophysiological actions of the pimobendan metabolite, UD-CG 212 Cl, in guinea pig myocardium. Westfall, M.V., Wahler, G.M., Fujino, K., Solaro, R.J. J. Pharmacol. Exp. Ther. (1992) [Pubmed]
  6. Systemic haemodynamic actions of pimobendan (UD-CG 115 BS) and its O-demethylmetabolite UD-CG 212 Cl in the conscious pig. Duncker, D.J., Hartog, J.M., Levinsky, L., Verdouw, P.D. Br. J. Pharmacol. (1987) [Pubmed]
  7. Cardiovascular effects of UD-CG 212 CL, a metabolite of pimobendan, in anaesthetized pigs. Verdouw, P.D., Levinsky, L., Duncker, D.J., Rutteman, A.M., Saxena, P.R. Eur. J. Pharmacol. (1987) [Pubmed]
  8. Increase in myofibrillar Ca2+ sensitivity induced by UD-CG 212 Cl, an active metabolite of pimobendan, in canine ventricular myocardium. Takahashi, R., Endoh, M. J. Cardiovasc. Pharmacol. (2001) [Pubmed]
  9. Role of the endocardium in the inotropic action of UD-CG-212 CL. Meulemans, A.L., Brutsaert, D.L. Eur. J. Pharmacol. (1991) [Pubmed]
  10. Effects of pimobendan and its active metabolite, UD-CG 212 Cl, on Ca2+-activated K+ channels in vascular smooth-muscle cells. Chen, C.H., Nakaya, Y., Minami, K., Kubo, M. J. Cardiovasc. Pharmacol. (1997) [Pubmed]
  11. Reversal of phosphate induced decreases in force by the benzimidazole pyridazinone, UD-CG 212 CL, in myofilaments from human ventricle. Fraker, L.D., Van Eyk, J., Solaro, R.J. Mol. Cell. Biochem. (1997) [Pubmed]
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