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7. Cardiotonic agents. 7. Inhibition of separated forms of cyclic nucleotide phosphodiesterase from guinea pig cardiac muscle by 4,5-dihydro-6-[4-(1H-imidazol-1-yl)phenyl]-3(2H)-pyridazinones and related compounds. Structure-activity relationships and correlation with in vivo positive inotropic activity. Sircar I, Weishaar RE, Kobylarz D, Moos WH, Bristol JA. J Med Chem; 1987 Nov; 30(11):1955-62. PubMed ID: 2822926 [Abstract] [Full Text] [Related]
8. Synthesis and inotropic activity of pyrazolo[4,3-c]pyridine-4-ones and related compounds. Ogawa K, Miyoshi K. J Pharm Sci; 1992 Jun; 81(6):581-5. PubMed ID: 1522499 [Abstract] [Full Text] [Related]
13. Studies on cardiotonic agents. VI. Synthesis of novel 4,5-dihydro-3(2H)-pyridazinone derivatives carrying some benzoheterocycles at the 6-position. Nomoto Y, Takai H, Ohno T, Kubo K. Chem Pharm Bull (Tokyo); 1991 Feb; 39(2):352-7. PubMed ID: 2054859 [Abstract] [Full Text] [Related]
14. 4-Aroyl-1,3-dihydro-2H-imidazol-2-ones: a new class of cardiotonic agents. 2. Effect of 4-pyridoyl substituents and related compounds. Schnettler RA, Dage RC, Palopoli FP. J Med Chem; 1986 May; 29(5):860-2. PubMed ID: 3701794 [Abstract] [Full Text] [Related]