A concise method for the preparation of deuterium-labeled cortisone: Synthesis of [6,7-H]cortisone
作者:A SULIMA、T PRISINZANO、T SPANDE、J DESCHAMPS、N WHITTAKER、Z HOCHBERG、A JACOBSON、K RICE
DOI:10.1016/j.steroids.2005.04.006
日期:2005.10
A method is described for the synthesis of isotopically labeled cortisone from commercially available cortisone acetate through a Delta(4,6)-dieneone. Direct deuteration of the dienone acetate with various catalysts in different solvent systems failed to give an isolable product. Initial hydrolysis of the side-chain ester of the Delta(4,6)-dieneone and subsequent derivatization gave the key intermediate
描述了一种通过Delta(4,6)-二烯酮从市售乙酸可的松中合成同位素标记的可的松的方法。在不同溶剂体系中用各种催化剂将乙酸二烯酮直接氘化无法得到可分离的产物。Delta(4,6)-dieneone的侧链酯的初始水解和随后的衍生化作用产生了关键中间体17alpha,20; 20,21-双亚甲二氧基-pregna-4,6-diene-3,11-dione,可以令人满意地氘化为所需产品。[6,7-(2)H]可的松的可用性将为未来研究可的松在人体组织中的代谢提供工具。