Synthesis of C C, C N coupled novel substituted dibutyl benzothiazepinone derivatives and evaluation of their thrombin inhibitory activity
作者:C.P. Baburajeev、Chakrabhavi Dhananjaya Mohan、Vijay Pandey、Shobith Rangappa、Naveen Shivalingegowda、Leen Kalash、Sannaningaiah Devaraja、Andreas Bender、Peter E. Lobie、Kanchugarakoppal S. Rangappa、Basappa
DOI:10.1016/j.bioorg.2019.03.004
日期:2019.6
docking studies suggested that the benzothiazepinones evaluated here consistently display hydrogen bonding with Ser214 of thrombin, which is similar to that of the co-crystallized ligand (1-(2R)-2-amino-3-phenyl-propanoyl-N-(2,5dichlorophenyl)methylpyrrolidine-2-carboxamide). DCT displayed additional hydrogen bonding to Ser195 and π-π interactions between its methoxyphenyl groups and Trp60, thereby providing
血栓的形成是血栓栓塞性疾病的关键事件,在受累患者中会导致较高的死亡率和发病率。在本研究中,我们合成了一个新颖的取代3,3-二丁基-8-甲氧基-2,3-二氢苯并[b] [1,4]噻嗪酮-4(5H)-one衍生物的文库,并对其血小板进行了测试聚集和凝血酶抑制活性。在测试的化合物中,3,3-二丁基-7-(2-氯苯基)-8-甲氧基-2,3-二氢苯并[b] [1,4]噻嗪-4-4(5H)-one(DCT)显示最大IC 50抑制凝血酶值3.85μM,因此选择DCT进行进一步研究。接下来,使用激动剂诱导的血小板聚集模型评估DCT对原发止血的作用。铅化合物以剂量依赖的方式抑制胶原蛋白或ADP或凝血酶诱导的血小板凝集。此外,在评估血浆重新钙化时间(5 µg DCT时为320±11秒),激活部分凝血活酶时间(2 µg时为58.0±0.01秒)和凝血酶原时间(14.7±0.01秒)时,DCT延长了血块形成过程。