365996-07-2Relevant articles and documents
Design, synthesis, and structure-activity relationship studies of novel fused heterocycles-linked triazoles with good activity and water solubility
Cao, Xufeng,Sun, Zhaoshuan,Cao, Yongbing,Wang, Ruilian,Cai, Tongkai,Chu, Wenjing,Hu, Wenhao,Yang, Yushe
supporting information, p. 3687 - 3706 (2014/05/20)
Triazoles with fused-heterocycle nuclei were designed and evaluated for their in vitro activity on the basis of the binding mode of albaconazole using molecular docking, along with SAR of antifungal triazoles. Tetrahydro-[1,2,4] triazolo[1,5-a]pyrazine and tetrahydro-thiazolo[5,4-c]pyridine nuclei were preferable to the other four fused-heterocycle nuclei investigated. Potent in vitro activity, broad spectrum and better water solubility were attained when triazoles containing nitrogen aromatic heterocycles were attached to these two nuclei. The most potent compounds 27aa and 45x, with low hERG inhibition and hepatocyte toxicity, both exhibited excellent activity against Candida, Cryptococcus, and Aspergillus spp., as well as selected fluconazole-resistant strains. A high water-soluble compound 58 (the disulfate salt of 45x) displayed unsatisfactory in vivo activity because of its poor PK profiles. Mice infected with C.alb. SC5314 and C.alb. 103 (fluconazole-resistant strain) and administered with 27aa displayed significantly improved survival rates. 27aa also showed favorable pharmacokinetic (PK) profiles.
Facile methods for preparation of thiazolopyridine and tetrahydrothiazolopyridine derivatives
Haginoya, Noriyasu,Komoriya, Satoshi,Osanai, Ken,Yoshino, Toshiharu,Nagata, Tsutomu,Nagamochi, Masatoshi,Muto, Ryo,Yamaguchi, Mitsuhiro,Nagahara, Takayasu,Kanno, Hideyuki
, p. 1555 - 1561 (2007/10/03)
The improved routes to prepare tetrahydrothiazolo[5,4-c]-pyridine-2- carboxylic acid lithium salts (2 and 3) were developed. Route A is consisted of the improved preparation of thiazolopyridine intermediates, and Route B is applicable for a large scale synthesis of tetrahydrothiazolo[5,4-c]pyridine-2- carboxylic acid derivatives. The methods we developed may serve as facile means for preparing thiazolopyridine and tetrahydrothiazolopyridine derivatives.