Purple acid phosphatase inhibitors as leads for osteoporosis chemotherapeutics
作者:Waleed M. Hussein、Daniel Feder、Gerhard Schenk、Luke W. Guddat、Ross P. McGeary
DOI:10.1016/j.ejmech.2018.08.004
日期:2018.9
obtaining the human enzyme, the corresponding enzymes from red kidney bean and pig have been used previously to develop specific PAP inhibitors. Here, existing lead compounds were further elaborated to create a series of inhibitors with Ki values as low as ∼30 μM. The inhibition constants of these compounds were of comparable magnitude for pig and red kidney bean PAPs, indicating that relevant binding interactions
thiazolidine-4-carboxylic acid derivatives were synthesized and evaluated for their ability to inhibitneuraminidase (NA) of influenza A virus. All the compounds were synthesized in good yields starting from commercially available l-cysteine hydrochloride using a suitable synthetic strategy. These compounds showed moderate inhibitory activity against influenza A neuraminidase. The most potent compound of
The synthesis and antihypertensive activity of a new series of N-(mercaptoacyl)-thiazolidinecarboxylic acids (VIIa-d) are described. Antihypertensive activity was evaluated in terms of angiotensin I-converting enzyme (ACE) inhibitory activity. The activities of these compounds were compared with that of (2S)-1-[(2S)-3-mercapto-2-methylpropanoyl] proline, SQ 14225, and many of them were found to be relatively potent inhibitors of ACE. The most potent was (4R)-2-(2-hydroxyphenyl)-3-(3-mercaptopropanoyl)-4-thiazolidinecarboxylic acid (62). Structure-activity relationships among the thiazolidines and some related compounds are discussed.
Discovery of Cysteine and Its Derivatives as Novel Antiviral and Antifungal Agents
作者:Shan Yang、Tienan Wang、Yanan Zhou、Li Shi、Aidang Lu、Ziwen Wang
DOI:10.3390/molecules26020383
日期:——
Based on the structure of the natural product cysteine, a series of thiazolidine-4-carboxylic acids were designed and synthesized. All target compounds bearing thiazolidine-4-carboxylic acid were characterized by 1H-NMR, 13C-NMR, and HRMS techniques. The antiviral and antifungal activities of cysteine and its derivatives were evaluated in vitro and in vivo. The results of anti-TMV activity revealed