title: Cardiotonic steroids. I. Importance of 14 beta-hydroxy group in digitoxigenin.
mesh_terms: D000251:Adenosine Triphosphatases / Q000037:antagonists & inhibitors; D000818:Animals; D002297:Cardanolides / Q000494:pharmacology*; D002417:Cattle; D004073:Digitoxigenin / Q000031:analogs & derivatives / Q000138:chemical synthesis / Q000494:pharmacology*; D004285:Dogs; D004988:Ethers, Cyclic / Q000494:pharmacology; D006900:Hydroxylation; D066298:In Vitro Techniques; D008274:Magnesium; D009682:Magnetic Resonance Spectroscopy; D009206:Myocardium / Q000201:enzymology; D010084:Oxidation-Reduction; D011188:Potassium; D012964:Sodium; D013055:Spectrophotometry, Infrared; D013329:Structure-Activity Relationship
chemical_list: D002297:Cardanolides; D004988:Ethers, Cyclic; D004073:Digitoxigenin; D012964:Sodium; D000251:Adenosine Triphosphatases; D008274:Magnesium; D011188:Potassium