The present invention relates to compounds of the general formula (1) wherein the variables are defined as given in the description and claims. The invention further relates to uses of and to, processes and intermediates related to compounds of the general formula (I), wherein Q is wherein the substituents of I, Ia and Ib are as defined in description and claims.
Synthesis, Structure, and Antibacterial Activity of 4-Imino-1, 4-dihydrocinnoline-3-carboxylic Acid and 4-Oxo-1, 4-dihydrocinnoline-3-carboxylic Acid Derivatives as Isosteric Analogues of Quinolones
The crystal structure of one analogue determined by X‐ray diffraction shows the dipolar formof the compound in the solid state. The in vitro antibacterial activity of the synthesized compounds against Gram‐positive and Gram‐negative bacteria was examined. The MIC of the most active compounds lies in the range of the first generation of quinolones such as nalidixic acid. The compounds with dichlorobenzyl
以提高其抗菌活性和抗菌谱为目的,对肉诺沙星进行化学修饰研究。合成了一系列4-亚氨基-1, 4-二氢肉啉-3-羧酸衍生物并评价了它们的体外抗菌活性。这些衍生物被设计为氟喹诺酮类的等排类似物,其特征是在 4 位存在亚胺基而不是氧代基团,在 2 位存在氮原子。 X 射线衍射测定的一种类似物的晶体结构显示固态化合物的偶极形式。检查合成的化合物对革兰氏阳性和革兰氏阴性细菌的体外抗菌活性。最活跃的化合物的 MIC 在第一代喹诺酮类药物的范围内,例如萘啶酸。
New Pyrimido[5,4-c]cinnolines with Antiplatelet Activities
作者:Klaus Rehse、Hedwig Gonska
DOI:10.1002/ardp.200500152
日期:2005.12
Twenty one newpyrimido[5,4‐c]cinnolines containing different lipophilic moieties (viz. phenyl, 4‐methoxyphenyl, 2‐furanyl, 2‐thienyl) in position 2 and additional basic groups (e.g., alkylaminopropyl, dialkylaminopropyl and cyclohexylaminopropyl) in position 4 of the title ring system have been prepared and investigated for antiplatelet effects (Born test). Ten of them inhibited the platelet aggregation
The present invention provides compounds having a structure according to Formula I: (I) or a salt or solvate thereof, wherein R1, R2, R3 and R4 are defined herein. The invention further provides pharmaceutical compositions including the compounds of the invention and methods of making and using the compounds and compositions of the invention, e.g., in the treatment and prevention of various disorders, such as Parkinson's disease.
Nargund, L. V. G.; Badiger, Virupax V.; Yarnal, S. M., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1994, vol. 33, # 8, p. 764 - 766
作者:Nargund, L. V. G.、Badiger, Virupax V.、Yarnal, S. M.