Alkanecarboxylic acid compounds which have benzofuranyl or benzothienyl
申请人:Ciba-Geigy Corporation
公开号:US04187234A1
公开(公告)日:1980-02-05
Compounds of the formula ##STR1## in which Ar represents optionally substituted 1,2-phenylene, X.sub.1 represents oxygen or sulphur, R.sub.1 represents the radical of the formula ##STR2## in which Ph represents optionally substituted phenylene, X.sub.2 represents oxygen or sulphur, R.sub.3 and R.sub.4 independently of one another denote hydrogen or alkyl and R.sub.5 represents optionally etherified hydroxyl or optionally substituted amino and in which R.sub.2 denotes hydrogen, lower alkyl or the radical of the formula Ia and one of the groups R.sub.1 and R.sub.2 takes up the 2-position and the other takes up the 3-position, and salts of such compounds having salt-forming groups, e.g. ethyl 2-[4-(2-benzofuranyl)-phenoxy]-heptanoate. These compounds may be used as fibrinolytic and thrombolytic agents.
Synthesis, Electronic Properties, and X-ray Structural Characterization of Tetrarylbenzo[1,2-<i>b</i>:4,5-<i>b</i>′]difuran Cation Radicals
作者:Ruchi Shukla、Shriya H. Wadumethrige、Sergey V. Lindeman、Rajendra Rathore
DOI:10.1021/ol801356e
日期:2008.8.21
robust cation-radical salts of BDF derivatives confirm that a single charge in the BDFs is stabilized largely by the benzodifuran and coplanar alpha-aryl groups lying on the longitudinal axis. These findings suggest that the linear arrays of BDFs may allow the construction of molecularwires suitable for long-range electron transport.