Practical Synthesis of a Cathepsin S Inhibitor: Route Identification, Purification Strategies, and Serendipitous Discovery of a Crystalline Salt Form
作者:Xiaohu Deng、Jimmy T. Liang、Matthew Peterson、Raymond Rynberg、Eugene Cheung、Neelakandha S. Mani
DOI:10.1021/jo902650b
日期:2010.3.19
A "redox economical" strategy resulted in it concise, modular synthesis Of Compound 1, it potent Cathepsin S inhibitor. Starting from three building blocks, crude drug substance was prepared in a two-step sequence in high yield. Efficient purification of the crude drug Substance wits accomplished via the formation of an unusual monoethyl oxalate salt.