The present invention relates to novel cysteinyl leukotriene (specifically LTD4) antagonists, mainly to quinolin, quinoxaline or benz[c]thiazole derivatives represented by the general formula (I), or the pharmaceutically acceptable salt thereof, process of preparation thereof, and to the use of the compounds in the preparation of pharmaceutical compositions for the therapeutic treatment of disorders related to cysteinyl leukotriene, in mammals, more specially in humans.
described. Importantly, these photocatalytic transformations feature good functional group tolerance and high regio- and chemoselectivities undermild reaction conditions. These findings might stimulate the exploration of new photocatalytic utilizations of P(O)–Hcompounds by employing CN-containing substrates as the radical acceptors.
A method for aromatichalogenation using a combination of elemental sulfur (S8) and N-halosuccinimide has been developed. A catalytic quantity of elemental sulfur (S8) with N-bromosuccinimide (NBS) and N-chlorosuccinimide (NCS) effectively halogenated less-reactive aromatic compounds, such as ester-, cyano-, and nitro-substituted anisole derivatives. No reaction occurred in the absence of S8, underscoring
已经开发出一种使用元素硫(S 8 )和N-卤代琥珀酰亚胺的组合进行芳族卤化的方法。催化量的元素硫(S 8 )与N-溴代琥珀酰亚胺(NBS)和N-氯代琥珀酰亚胺(NCS)有效地卤化反应性较低的芳香族化合物,例如酯-、氰基-和硝基取代的苯甲醚衍生物。在没有 S 8的情况下不会发生反应,强调了其在催化活性中的关键作用。该催化体系也适用于1,3-二碘-5,5-二甲基乙内酰脲的芳香族碘化反应。
US9102665B2
申请人:——
公开号:US9102665B2
公开(公告)日:2015-08-11
[EN] CYSTEINYL LEUKOTRIENE ANTAGONISTS<br/>[FR] ANTAGONISTES DES CYSTÉINYL LEUCOTRIÈNES
申请人:SUN PHARMA ADVANCED RES CO LTD
公开号:WO2013051024A2
公开(公告)日:2013-04-11
The present invention relates to novel cysteinyl leukotriene (specifically LTD4) antagonists, mainly to quinolin, quinoxaline or benz[c]thiazole derivatives represented by the general formula (I), or the pharmaceutically acceptable salt thereof, process of preparation thereof, and to the use of the compounds in the preparation of pharmaceutical compositions for the therapeutic treatment of disorders related to cysteinyl leukotriene, in mammals, more specially in humans.