Imines that React with Phenols in Water over a Wide pH Range
摘要:
Cyclic imine derivatives that react with phenols, including tyrosine residues of peptides, have been developed. Reactions of the imines with phenols proceeded in water over a wide pH range (pH 2-10) at room temperature to 37 degrees C and afforded Mannich products without the need of additional catalysts.
Imines that React with Phenols in Water over a Wide pH Range
摘要:
Cyclic imine derivatives that react with phenols, including tyrosine residues of peptides, have been developed. Reactions of the imines with phenols proceeded in water over a wide pH range (pH 2-10) at room temperature to 37 degrees C and afforded Mannich products without the need of additional catalysts.
Synthesis and Conformational Behaviour of Enantiomeric Naphthoxazinoquinoxalinone Derivatives
作者:István Szatmári、Petra Barta、Gábor Tóth、Attila Balázs、Judit Halász、Ferenc Fülöp
DOI:10.1002/ejoc.201700699
日期:2017.10.10
synthesized via an o-quinone methide intermediates. The enantiopure annelational analogues naphth[1,3]oxazino[3,4-a]quinoxalinone derivatives have also been prepared by a different synthetic pathway. The conformational behaviour of the new polyheterocycles was examined and confirmed by theoretical calculations.
新的非外消旋萘[1,3]恶嗪基[3,2- a ]喹喔啉酮是通过邻醌甲基化物中间体合成的。对映体纯净的延髓类似物萘[1,3]恶嗪基[3,4- a ]喹喔啉酮衍生物也已通过不同的合成途径制备。研究了新的多杂环的构象行为,并通过理论计算证实了这一点。
Copper-Catalyzed Oxidative [3 + 2]-Annulation of Quinoxalin-2(1<i>H</i>)-one with Oxime Esters toward Functionalized Pyrazolo[1,5-<i>a</i>]quinoxalin-4(5<i>H</i>)-ones as Opioid Receptor Modulators
Pyrazolo[1,5-a]quinoxalin-4(5H)-one derivatives as novel opioid receptor modulators have been synthesized via copper-catalyzed oxidative [3 + 2]-annulation of quinoxalin-2(1H)-one and oxime-O-acetates. This hydrazine-free C–C and N–N bond formation strategy starts with the generation of C2N1 synthon using oxime acetate, which reacts in a [3 + 2] manner with quinoxalin-2(1H)-one, followed by oxidative
Pyrazolo[1,5 - a ]quinoxalin-4( 5H )-one 衍生物作为新型阿片受体调节剂已通过铜催化氧化 [3 + 2]-quinoxalin-2( 1H )-one 和肟的环化合成- O-乙酸盐。这种不含肼的 C-C 和 N-N 键形成策略始于使用乙酸肟生成 C 2 N 1合成子,其以 [3 + 2] 方式与 quinoxalin-2(1 H )-one 反应,随后通过氧化芳构化。合成的化合物针对阿片受体进行了测试,其中八种化合物与 EC 50具有拮抗作用< 5 μM 在各种阿片受体上。进行分子对接研究以确定活性 pyrazolo[1,5 - a ]quinoxalin-4(5 H )-one 配体与 hKOR 蛋白的结合。对接结果表明化合物3d和3g与活性位点口袋残基T111的羟基参与氢键结合。
MDR-reversing 8-hydroxy-quinoline derivatives
申请人:MAGYAR TUDOMÁNYOS AKADÉMIA TERMÉSZETTUDOMÁNYI KUTATÓKÖZPONT
公开号:US10744127B2
公开(公告)日:2020-08-18
The present invention is related to 8-hydroxy-quinoline derivatives having multidrug-resistance reversing activity with improved selectivity and increased cytotoxicity towards multidrug-resistant cancer cells, preparation thereof and use of the same in the treatment of cancer, especially multidrug-resistant variants thereof.
申请人:MAGYAR TUDOMÁNYOS AKADÉMIA TERMÉSZETTUDOMÁNYI KUTATÓKÖZPONT
公开号:US20190151306A1
公开(公告)日:2019-05-23
The present invention is related to 8-hydroxy-quinoline derivatives having multidrug-resistance reversing activity with improved selectivity and increased cytotoxicity towards multidrug-resistant cancer cells, preparation thereof and use of the same in the treatment of cancer, especially multidrug-resistant variants thereof.
[EN] MDR-REVERSING 8-HYDROXY-QUINOLINE DERIVATIVES<br/>[FR] DÉRIVÉS DE 8-HYDROXY-QUINOLÉINE INVERSANT LA MULTIRÉSISTANCE AUX MÉDICAMENTS
申请人:MAGYAR TUDOMÁNYOS AKADÉMIA TERMÉSZETTUDOMÁNYI KUTATÓKÖZPONT
公开号:WO2017175018A2
公开(公告)日:2017-10-12
The present invention is related to 8-hydroxy-quinoline derivatives having multidrug-resistance reversing activity with improved selectivity and increased cytotoxicity towards multidrug-resistant cancer cells, preparation thereof and use of the same in the treatment of cancer, especially multidrug-resistant variants thereof.