Synthesis and bioactivity of 5-(1-aryl-1H-tetrazol-5-ylsulfanylmethyl)-N-xylopyranosyl-1,3,4-oxa(thia)diazol-2-amines
作者:Yao-Wu He、Ling-Hua Cao、Jian-Bin Zhang、Duo-Zhi Wang、Haji Akber Aisa
DOI:10.1016/j.carres.2011.01.010
日期:2011.4
A series of new N'-[N-(2,3,4-tri-O-acetyl-beta-D-xylopyranosyl)thiocarbamoyl]-2-[(1-aryl-1H-tetrazol-5-yl) sulfanyl]acetohydrazides 5a-5e were synthesized rapidly in high yields from 2-(1-aryl-1H-tetrazol-5-ylsulfanyl)acetohydrazides 3a-3e and 2,3,4-tri-O-acetyl-beta-D-xylopyranosyl isothiocyanate 4, then 5a-5e were converted to a series of new 5-(1-aryl-1H-tetrazol-5-ylsulfanylmethyl)-N-(2,3,4-tri-O-acetyl-beta-D-xylopyranosyl)-1,3,4-oxadiazole-2-amines 6a-6e and 5-(1-aryl-1H-tetrazol-5-ylsulfanylmethyl)-N-(2,3,4-tri-O-acetyl-beta-D-xylopyranosyl)-1,3,4-thiadiazole-2-amines 7a-7e, respectively under mercuric acetate/alcohol system or acetic anhydride/phosphoric acid system, then deacetylated in the solution of CH3ONa/CH3OH. All of the novel compounds were characterized by IR. H-1 NMR, C-13 NMR, MS and elemental analysis. The structures of compounds 2e, 3e, 5a and 5c have been determined by X-ray diffraction analysis. Some of the synthesized compounds displayed PTP1B inhibition and microorganism inhibition. (C) 2011 Elsevier Ltd. All rights reserved.