Synthesis and Pharmacological Properties of Heterocyclic Steroids
October 2010
TLDR The document concludes that scientists created various steroids with different properties, including a more effective semi-synthetic vitamin D.
The document from 2010 details the synthesis and pharmacological properties of heterocyclic steroids, which involve replacing ring-carbon atoms with oxygen or nitrogen. It highlights the creation of oxandrolone, a potent androgenic-anabolic drug, and androgen antagonists through specific carbon atom replacements. The synthesis of other heterocyclic steroids, such as 11-oxaandrostane and testolactone, is also described, although many compounds did not exhibit significant hormonal activity. Additionally, the document covers the modification of cardenolides like digitoxin and digoxin, the creation of cholesterol and vitamin D analogues, and the synthesis of a semi-synthetic vitamin D with a better therapeutic index, involving complex reactions like ozonolysis and photo-oxidation.
