The present description relates to fused polycyclic 2-pyridinone compounds and forms and pharmaceutical compositions thereof and methods of using such compounds, forms or compositions thereof for treating or ameliorating a wild-type or drug-resistant form of N. gonorrhoeae or N. meningitides. A compound of Formula (la), Formula (lb) or Formula (Ic), or a form thereof, wherein the dashed lines represent one or more double bonds optionally present where allowed by available valences.
Effective preparation of cycloheptimidazol-4-ones was developed. The reactions of 2-tosyloxytropone (5) with amidines (6) carried out under simple conditions such as aq. NaOH in toluene at 35 °C afforded the corresponding cycloheptimidazol-4-ones (3) in low yield. However, by adding tetra-n-butylammonium bromide (n-Bu4NBr) to this reaction system, the yield was improved dramatically. The reaction conditions were screened in detail.
开发了环庚基咪唑-4-酮的有效制备方法。在简单的条件下,如 35 °C 下甲苯中的 NaOH 溶液,将 2-tosyloxytropone(5)与酰胺(6)反应,可得到相应的环庚基咪唑-4-酮(3),但收率较低。然而,在该反应体系中加入四正丁基溴化铵(n-Bu4NBr)后,收率显著提高。对反应条件进行了详细的筛选。