Synthesis and Characterisation of Some New Hybrid Molecules Containing Thiophene, Triazole and Coumarin Rings under Microwave Conditions
作者:Fatih Yilmaz
DOI:10.3184/174751918x15314831778603
日期:2018.7
In this work, a new series of N‘-[4-amino-5-oxo-3-(thiophen-2-yl)-4,5-dihydro-1H-1,2,4-triazol-1-yl]acetyl}-2-oxo-2H-1-benzopyran-3-carbohydrazides (thiophene–triazole–coumarin hybrid molecules) was synthesised from the reaction of 2-[4-amino-5-oxo-3-(thiophen-2-yl)-4,5-dihydro-1H-1,2,4-triazol-1-yl]acetohydrazide and 3-(1H-benzotriazol-1-ylcarbonyl)-2H-chromen-2-ones by using microwave irradiation
One-flask synthesis of 1,3,5-trisubstituted 1,2,4-triazoles from nitriles and hydrazonoyl chlorides via 1,3-dipolar cycloaddition.
一瓶法合成1,3,5-三取代-1,2,4-三唑,从腈和叠氮酰氯通过1,3-偶极环加成。
Substituted 1,3-diazines as leukocyte elastase inhibitors
申请人:Imperial Chemical Industries PLC
公开号:US05254558A1
公开(公告)日:1993-10-19
The present invention relates to certain novel substituted heterocycles which are 1-pyrimidinylacetamide compounds of formula I, set out herein, which are inhibitors of human leukocyte elastase (HLE), also known as human neutrophil elastase (HNE), making them useful whenever such inhibition is desired, such as for research tools in pharmacological, diagnostic and related studies and in the treatment of diseases in mammals in which HLE is implicated. The invention also includes intermediates useful in the synthesis of these substituted heterocycles, processes for preparing the substituted heterocycles, pharmaceutical compositions containing such substituted heterocycles and methods for their use.
receptors (cAMP assays). Its 2-(2-hydroxybenzyl) analog 26 also showed a high affinity for the hA2A AR (Ki=5.26nM) and was 22-fold selective versus the hA1 subtype. Molecular docking investigations performed at the hA2A AR crystalstructure and at a homology model of the hA1 AR allowed us to represent the hypothetical binding mode of our derivatives and to rationalize the observed SARs.
There are disclosed compounds of the formula ##STR1## wherein X is N or CR.sup.2 Y is O, S, NR.sup.2, CHR.sup.2 or C(R.sup.2).sub.2 when n=0, or N or CR.sup.2 when n=1; p is 0-3; R.sup.1 is ##STR2## R.sup.2 is hydrogen or lower alkyl; R.sup.3 is hydrogen, lower alkyl, phenyl, thienyl, furyl, pyridyl, ##STR3## --C(R.sup.4).sub.3 or --(CH.sub.2).sub.p COOR.sup.2 ; R.sup.4 is halo; Z is O or S; and the pharmaceutically acceptable salts thereof, and their use in the treatment of luekotriene-mediated naso-bronchial obstructive airpassageway conditions, such as allergic rhinitis, allergic bronchial asthma and the like, in psoriasis, ulcerative colitis, rheumatoid arthritis as well as in other immediate hypersensitivity reactions.