申请人:Kong Xianqi
公开号:US20050143462A1
公开(公告)日:2005-06-30
The present invention is directed to methods of preparation of sulfonate derivatized compounds, e.g., 3-amino-1-propanesulfonic acid and 1,3-propanedisulfonic acid disodium salt with increased purity, with reduced potential for toxic by-products, and that are pharmaceutically useful, e.g., for the treatment of amyloidosis.