Elemental-Sulfur-Incorporated Cyclizations of Pyrrolidines Leading to Thienopyrroles
作者:Yuanyuan Yue、Huibin Shao、Zhixian Wang、Ke Wang、Le Wang、Kelei Zhuo、Jianming Liu
DOI:10.1021/acs.joc.0c01363
日期:2020.9.4
2-b]pyrroles from the direct oxidative [4 + 1] cyclization of 2-alkynyl pyrrolidines with elemental sulfur. This transformation likely originates from electrophilic attack at the β-position of pyrrolidine followed by an intramolecular thienannulation to deliver the desired product. Mechanistic investigation suggests that the present reaction involves the formation of dihydrothieno[3,2-b]pyrrole as an
我们在本文中报道了2-炔基吡咯烷与元素硫的直接氧化[4 + 1]环化反应合成噻吩并[3,2- b ]吡咯。该转变可能源自吡咯烷在β-位的亲电攻击,随后是分子内的噻吩环化以递送所需的产物。机理研究表明,该反应涉及二氢噻吩并[3,2- b ]吡咯作为中间体的形成。
Copper-catalyzed aerobic decarboxylative coupling between cyclic α-amino acids and diverse C–H nucleophiles with low catalyst loading
作者:Jing Guo、Ying Xie、Qiao-Lei Wu、Wen-Tian Zeng、Albert S. C. Chan、Jiang Weng、Gui Lu
DOI:10.1039/c8ra02340a
日期:——
An aerobic decarboxylative cross-coupling of α-aminoacids with diverse C–H nucleophiles has been realized using Cu2(OH)2CO3 (1 mol%) as the catalyst under air. This protocol enables highly efficient formation of various C(sp3)–C(sp3), C(sp3)–C(sp2) and C(sp3)–C(sp) bonds under simple conditions without the use of any ligand or extra oxidant, providing a practical approach to numerous nitrogen-containing
Substrates and inhibitors of prolyl oligopeptidase and methods of use thereof
申请人:The Board of Regents of the University of Oklahoma
公开号:US10155789B2
公开(公告)日:2018-12-18
Inhibitors of fibroblast activation protein alpha (FAP) and Prolyl Oligopeptidase (POP) are disclosed, along with their use in various therapies related to conditions, diseases, and disorders involving abnormal cell proliferation such as malignancies and angiogenesis, and in neural disorders such as Alzheimer's disease. Stalk portions of the inhibitor molecules, and substrates of FAP and POP, are also disclosed and may be used, for example, in screening methods for identifying such inhibitors.
本研究公开了成纤维细胞活化蛋白α(FAP)和脯氨酰寡肽酶(POP)的抑制剂,以及它们在涉及异常细胞增殖(如恶性肿瘤和血管生成)的条件、疾病和紊乱以及神经紊乱(如阿尔茨海默病)的各种疗法中的用途。此外,还公开了抑制剂分子的柄部分以及 FAP 和 POP 的底物,例如,可用于识别此类抑制剂的筛选方法。
Method of inhibiting activity of cell surface fibroblast activation protein alpha
申请人:The Board of Regents of the University of Oklahoma
公开号:US10174077B2
公开(公告)日:2019-01-08
The presently disclosed inventive concept(s) include inhibitors of antiplasmin cleaving enzyme (APCE) and fibroblast activation protein alpha (FAP) which can be used in various therapies related to disorders of fibrin and α2-antiplasmin and abnormal cell proliferation. The presently disclosed inventive concept(s) also include substrates of APCE and FAP, which may be used, for example, in screening methods for identifying such inhibitors. The presently disclosed inventive concept(s) further include, but are not limited to, methods of treating or inhibiting atherosclerosis and thrombus disorders by altering the ratios of types of plasma α2-antiplasmin and to methods of treating conditions involving abnormal cell proliferation such as cancers.
The invention is in the field of growth of Mycobacteria. In particular, agents have been identified which enhance the growth of Mycobacterial species, which are naturally slow-growing. Such agents can therefore be used in the identification of Mycobacteria and in the diagnosis of Mycobacterial infections.