申请人:Maligres E. Peter
公开号:US20050014780A1
公开(公告)日:2005-01-20
The preparation of 5-sulfonamido-8-hydroxy-1,6-naphthyridine-7-carboxamides is disclosed. A 5-halo-8-hydroxy-1,6-napthyridine-7-carboxylic acid or acid ester in which the hydroxy is derivatized with a protecting group is reacted with a sulfonamide (e.g., an alkanesulfonamide, N-alkyl alkanesulfonamide, or alkanesultam) in the presence of a copper promoter and a chelating agent, followed by deprotection of the hydroxy group, and then coupling with an amine to obtain the 5-sulfonamido-8-hydroxy-1,6-naphthyridine-7-carboxamide. Alternatively, the hydroxy-protected 5-halo-8-hydroxy-1,6-napthyridine-7-carboxylic acid (or ester) is first coupled with an amine, the resulting carboxamide reacted with a sulfonamide followed by deprotection of the hydroxy group to obtain the 5-sulfonamido-8-hydroxy-1,6-naphthyridine-7-carboxamide. The 5-sulfonamido-8-hydroxy-1,6-naphthyridine-7-carboxamides are inhibitors of HIV integrase and are useful for treating HIV infection, preventing HIV infection, delaying the onset of AIDS, and treating AIDS.
本文公开了制备5-磺酰胺基-8-羟基-1,6-萘啶-7-羧酸酰胺的方法。首先将5-卤代-8-羟基-1,6-萘啶-7-羧酸或酸酯与保护羟基的衍生物反应,加入磺酰胺(例如,烷基磺酰胺,N-烷基磺酰胺或烷基磺酰胺)和铜催化剂以及螯合剂,去除保护羟基,然后与胺偶联,得到5-磺酰胺基-8-羟基-1,6-萘啶-7-羧酸酰胺。或者,先将保护羟基的5-卤代-8-羟基-1,6-萘啶-7-羧酸(或酯)与胺偶联,然后将产生的羧酰胺与磺酰胺反应,去除保护羟基,得到5-磺酰胺基-8-羟基-1,6-萘啶-7-羧酸酰胺。5-磺酰胺基-8-羟基-1,6-萘啶-7-羧酸酰胺是HIV整合酶的抑制剂,可用于治疗HIV感染,预防HIV感染,延缓艾滋病的发作和治疗艾滋病。