Disclosed are a series of hydroxyl purine compounds and the use thereof as PDE2 or TNFα inhibitors, in particular, the compounds as shown in formula (I), or tautomers thereof or pharmaceutically acceptable salts thereof.
Antipicornavirus activity of tetrazole analogs related to disoxaril
作者:Guy D. Diana、David Cutcliffe、Deborah L. Volkots、John P. Mallamo、Thomas R. Bailey、Niranjan Vescio、Richard C. Oglesby、Theodore J. Nitz、Joseph Wetzel
DOI:10.1021/jm00074a004
日期:1993.10
A series of tetrazole analogues of Win 54954, a broad-spectrum antipicornavirus compound, has been synthesized to address the acid lability of the oxazoline ring of this series of compounds. The results of X-ray crystallography studies of several members of the oxazoline series bound to human rhinovirus type IA and 14 have been used to design compounds in the tetrazole series with a broad spectrum of activity. Compound 16b, which has a three-carbon linkage between the isoxazole and phenyl rings and a propyl chain extending from the isoxazole ring, exhibiting an MIC80 for 15 rhinovirus serotypes of 0.20 muM as compared to 0.40 muM for Win 54954. X-ray studies of 16b bound to human rhinovirus-14 show that the propyl side chain extends into a pore in the binding site with the possibility of hydrophobic interactions with a pocket formed by Leu106 and a portion of Ser107.
Design and synthesis of actinide specific chelators: Synthesis of new cyclam tetrahydroxamate (CYTROX) and cyclam tetraacetonylacetone (CYTAC) chelators
作者:Nirmal Koshti、Vincent Huber、Paul Smith、Aravamudan S. Gopalan
DOI:10.1016/s0040-4020(01)86981-7
日期:1994.2
Molecular modeling shows that two new chelators, the cyclam tetrahydroxamate, 1, and the cyclam tetraacetonylacetone derivative, 2, have potential for the binding of plutonium (IV). The synthesis of these chelators has been achieved using short sequences from readily available cyclam. Both the details of the molecular modeling and the synthetic route to these molecules are described.