Thirty new 1,2-dihydropyridine derivatives of the general formula 4-alkyl (aryl)-6-aryl-3-cyano-2(1H)-pyridinones (1-15) and 4-alkyl (aryl)-6-aryl-3-cyano-2(1H)-iminopyridines (16-30) were synthesized using one-pot multicomponent reactions of the properly substituted acetophenone, appropriate aldehyde, ammonium acetate and ethyl cyanoacetate (1-15) or malononitrile (16-30) in ethanol. These target compounds (1-30) were evaluated for their cardiotonic activity using the spontaneously beating atria model, from reserpine-treated guinea pigs. The best pharmacological profile was obtained with 3-cyano-6-(3,4-dimethoxyphenyl)-4-(4-hydroxyphenyl)-2(1H)-pyridinone (9) which displayed selectivity for increasing the force of contraction (108.7 +/- 6.7,% change over control) rather than the frequency rate (40.81 +/- 5.3,% change over control) at a 5 x 10(-4) M concentration. The effects of structural changes upon activity are reported. (C) 1999 Elsevier Science S.A. All rights reserved.
LATIF N.; MISHRIKY N.; HAGGAG B.; BASYOUNI W., INDIAN J. CHEM., 24,(1985) N 12, 1230-1234
作者:LATIF N.、 MISHRIKY N.、 HAGGAG B.、 BASYOUNI W.
DOI:——
日期:——
Latif, N.; Mishriky, N.; Haggag, B., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1985, vol. 24, p. 1230 - 1234