通过芳香醛和(硫代)的一锅式伪三组分多米诺偶联,已开发出一种有效,安全且简便的途径来官能化螺[furo [2,3- d ]嘧啶-6,5'-嘧啶]衍生物室温下在水中存在乌托品-溴(UB)配合物时的巴比妥酸。该反应顺序由芳族醛与(硫代)巴比妥酸的最初的Knoevenagel缩合组成,然后第二个当量的(硫代)巴比妥酸衍生物的迈克尔加成,然后由UB催化的Williamson环醚化提供产物。
通过芳香醛和(硫代)的一锅式伪三组分多米诺偶联,已开发出一种有效,安全且简便的途径来官能化螺[furo [2,3- d ]嘧啶-6,5'-嘧啶]衍生物室温下在水中存在乌托品-溴(UB)配合物时的巴比妥酸。该反应顺序由芳族醛与(硫代)巴比妥酸的最初的Knoevenagel缩合组成,然后第二个当量的(硫代)巴比妥酸衍生物的迈克尔加成,然后由UB催化的Williamson环醚化提供产物。
SALTS OF 5,5'-ARYLIDENEBISBARBITURIC AND 5,5'-ARYLIDENEBIS(2-THIOBARBITURIC) ACIDS AND 5,5'-ARYLIDENEBIS(2-THIOBARBITURIC) ACIDS HAVING AN ANTIBACTERIAL, ANTI-CHLAMYDIAL, ANTIVIRAL AND IMMUNO-MODULATING ACTIVITY
申请人:Tets, Viktor Veniaminovich
公开号:EP1043318A1
公开(公告)日:2000-10-11
The present invention relates to the production of new chemical substances having an anti-microbial, antiviral, immuno-modulating and anti-tumoral activity. This invention more precisely relates to the synthesis of new substances consisting of 5,5'-arylidenebis(2-thiobarbituric) acids and in salts of 5,5'-arylidenebisbarbituric and 5,5'-arylidenebis(2-thiobarbituric) acids of general formula (I) where X is oxygen or sulphur. R1 is hydrogen, a nitro group or an alkoxy group, R2 is hydrogen, a nitro group, an alkoxy group or halogen and Cat+ is a proton or a pyridin- or 2-hydroxyethylammonium-cation. In the preferred embodiments of these substances, the following conditions are observed:
This invention also relates to eight synthesis instances of these substances, to three tables representing the chemical and physical characteristics of the substances thus obtained and to the results of five series of experiments. These synthesis instances, tables and results demonstrate the biological properties of these substances on myco-bacteria, on herpes viruses and on Chlamydia trachomatis as well as their interferon-inducing activity and the absence of acute toxicity.
5H-PYRANO [2,3-d:6,5-d']DIPYRIMIDINE DERIVATIVES HAVING AN ANTIBACTERIAL, ANTIVIRAL AND IMMUNO-MODULATING ACTIVITY
申请人:Natural Drug Sciences, L.L.C.
公开号:EP1033369B1
公开(公告)日:2003-01-29
US6340755B1
申请人:——
公开号:US6340755B1
公开(公告)日:2002-01-22
Urotropine–bromine promoted synthesis of functionalized oxaspirotricyclic furopyrimidines via a domino Knoevenagel condensation/Michael addition/α-bromination/Williamson cycloetherification sequence in water
5′-pyrimidine] derivatives has been developed by a one-pot pseudo three-component domino coupling of aromatic aldehydes and (thio)barbituric acids in the presence of urotropine–bromine (UB) complex in water at room temperature. The reaction sequence consists of an initial Knoevenagel condensation of aromatic aldehydes with (thio)barbituric acids, followed by Michael addition of the second equivalent of
通过芳香醛和(硫代)的一锅式伪三组分多米诺偶联,已开发出一种有效,安全且简便的途径来官能化螺[furo [2,3- d ]嘧啶-6,5'-嘧啶]衍生物室温下在水中存在乌托品-溴(UB)配合物时的巴比妥酸。该反应顺序由芳族醛与(硫代)巴比妥酸的最初的Knoevenagel缩合组成,然后第二个当量的(硫代)巴比妥酸衍生物的迈克尔加成,然后由UB催化的Williamson环醚化提供产物。