Synthesis and activity of 1H-benzimidazole and 1H-benzotriazole derivatives as inhibitors of Acanthamoeba castellanii
摘要:
Chloro-, bromo- and methyl- analogues of 1H-benzimidazole and 1H-benzotriazole and their N-alkyl derivatives have been synthesized and tested in vitro against the protozoa Acanthamoeba castellanii. The results indicate that 5,6-dimethyl-1H-benzotriazole (11) and 5,6-dibromo-1H-benzotriazole (14) have higher efficacy than the antiprotozoal agent chlorohexidine. (C) 2004 Elsevier Ltd. All rights reserved.
Blue-light-promoted radical C–H azolation of cyclic nitrones enabled by Selectfluor®
作者:Alexey A. Akulov、Mikhail V. Varaksin、Anton N. Tsmokalyuk、Valery N. Charushin、Oleg N. Chupakhin
DOI:10.1039/d1gc00175b
日期:——
An original approach to achieve the C(sp2)–H azolation of cyclic aldonitrones mediated by Selectfluor® has first been employed. By exploiting a metal-free, visible-light-promoted cross-dehydrogenative C–N coupling reaction between model aldonitrones, 2H-imidazole 1-oxides, and NH-containing azoles, a series of novel azaheterocyclic derivatives have been obtained in yields up to 94%. The elaborated
A highly selective, environmentally friendly, and scalable electrochemical protocol for the construction of α-acyloxy sulfides, through the synergistic effect of self-assembly-induced C(sp3)–H/O–H cross-coupling, is reported. It features exceptionally broad substrate scope, high regioselectivity, gram-scale synthesis, construction of complex molecules, and applicability to a variety of nucleophiles
The disclosure provides compounds useful for treating alpha-1 antitrypsin deficiency (AATD), according to formula (I):
tautomers thereof, pharmaceutically acceptable salts of the compounds, pharmaceutically acceptable salts of the tautomers, deuterated derivatives of the compounds, deuterated derivatives of the tautomers, and deuterated derivatives of the salts, solid forms of those compounds and processes for making those compounds.
Chemo-, Regio-, and Enantioselective Rhodium-Catalyzed Allylation of Triazoles with Internal Alkynes and Terminal Allenes
作者:Dino Berthold、Bernhard Breit
DOI:10.1021/acs.orglett.7b03708
日期:2018.2.2
triazole derivatives with internalalkynes and terminalallenes gives access to secondary and tertiary allylic triazoles in very good enantioselectivities. For this process, three new members of the JosPOphos ligand family have been prepared and employed in catalysis. The optimized reaction conditions enable the coupling of triazoles with internalalkynes as well as with allenes, displaying a high tolerance
Organocatalytic Regio- and Enantioselective 1,8-Additions of Nitrogen and Sulfur Nucleophiles to 6-Methylene-6<i>H</i>-indoles
作者:Qianqian Song、Pei Zhang、Shuai Liang、Xuling Chen、Pengfei Li、Wenjun Li
DOI:10.1021/acs.orglett.0c02769
日期:2020.10.16
Remote stereocontrolled 1,8-addition of heteroatom nucleophiles to 6-methylene-6H-indoles generated in situ from 6-indolylmethanols has been developed for the first time. With the aid of a chiral phosphoric acid, 6-indolylmethanols reacted with benzotriazoles to furnish 1,8-adducts with a nitrogen-containing tertiary carbon stereocenter in 54–80% yield with 76–92% ee. Importantly, the stereoselective