A Prodrug Approach toward the Development of Water Soluble Fluoroquinolones and Structure−Activity Relationships of Quinoline-3-carboxylic Acids
摘要:
A fluoroquinolone prodrug, PA2808, was prepared and shown to convert to the highly active parent drug PA2789. In vitro and in vivo activation of PA2808 by alkaline phosphatase was demonstrated using disk diffusion and rat lung infection models. The water solubility of PA2808 showed a marked increase compared to PA2789 over a pH range suitable for aerosol drug delivery. A total of 48 analogues based on PA2789 were prepared and screened against a panel of Gram-positive and Gram-negative pathogens. Incorporating a cyclopropane-fused pyrrolidine (amine g) at C-7 resulted in some of the most active analogues.
Methyl2-(2,4-dichloro-5-fluorobenzoyl)-3-(pyrimidin-2-ylamino)acrylate has been prepared. Its crystal structure is discussed. The compound crystallizes in the triclinic space group P-1 with a = 11.6259 (7) Å, b = 11.8789 (7) Å, c = 13.9206 (5) Å, α = 68.0250 (10)°, β = 77.5660 (10)°, γ = 62.4950 (10)°, V = 1579.18 (14) Å3, Z = 4. There are two independent but chemically identical molecules
已经制备了2-(2,4-二氯-5-氟苯甲酰基)-3-(嘧啶-2-基氨基)丙烯酸甲酯。讨论了其晶体结构。该化合物在三斜晶系空间群P-1中结晶,其 a = 11.6259(7)Å, b = 11.8789(7)Å, c = 13.9206(5)Å, α = 68.0250(10)°, β = 77.5660(10) °, γ = 62.4950(10)°, V = 1579.18(14)一种3, ž = 4有在不对称单元中有两个独立但化学上相同的分子。分子通过弱分子间的C–H···O和C–H···F相互作用堆积在晶体结构中。
3H-1,2-DITHIOCYCLOPENTENE-3-THIOKETONE COMPOUNDS AND APPLICATION THEREOF
申请人:Soochow University
公开号:EP2889294A1
公开(公告)日:2015-07-01
The present invention relates to the field of medicaments, and in particular relates to 3H-1,2-dithiocyclopentene-3-thione compounds and application thereof. 3H-1,2-dithiocyclopentene-3-thione compounds disclosed by the invention have new structures shown in formula I or formula II. Proved by experiments, 3H-1,2-dithiocyclopentene-3-thione compounds can directly protect neurons in a cellular model, and can significantly restrain excessive inflammatory responses of brain inflammatory cells; and by using 3H-1,2-dithiocyclopentene-3-thione, focal ischemic cerebral infarct volumes of mice can be remarkably reduced in an animal model. Therefore, the invention provides the application of 3H-1,2-dithiocyclopentene-3-thione compounds and pharmaceutically acceptable salts thereof in the preparation of medicaments for preventing or treating cerebral apoplexy diseases.
本发明涉及药物领域,尤其涉及3H-1,2-二硫代环戊烯-3-硫酮化合物及其应用。本发明公开的 3H-1,2-二硫代环戊烯-3-硫酮化合物具有如式 I 或式 II 所示的新结构。通过实验证明,3H-1,2-二硫代环戊烯-3-硫酮化合物可以直接保护细胞模型中的神经元,并能显著抑制脑部炎症细胞的过度炎症反应;通过使用 3H-1,2-二硫代环戊烯-3-硫酮,可以显著降低动物模型中小鼠局灶性缺血性脑梗死的体积。因此,本发明提供了 3H-1,2-二硫代环戊烯-3-硫酮化合物及其药学上可接受的盐在制备预防或治疗脑中风疾病的药物中的应用。