Antipicornavirus activity of tetrazole analogs related to disoxaril
摘要:
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.
Direct Transformation of Methyl Arenes to Aryl Nitriles at Room Temperature
作者:Wang Zhou、Liangren Zhang、Ning Jiao
DOI:10.1002/anie.200903838
日期:2009.9.7
Three CH bonds are cleaved in the direct transformation of methyl arenes to aryl nitriles under mild and neutral conditions (see scheme). This new synthetic tool may not only be used to construct synthetically and medicinally important aryl nitriles, it also achieves CH functionalization under mild conditions. PIDA=phenyliodonium diacetate.