Synthesis of novel MPTP analogs as potential monoamine oxidase B (MAO-B) inhibitors
作者:Amit S. Kalgutkar、Neal Castagnoli
DOI:10.1021/jm00100a023
日期:1992.10
The nigrostriatal toxin 1-methyl-4-phenyl-1,2,3,6-tetahydropyridine (MPTP) is an excellent substrate and a weak inactivator of the flavoenzyme monoamineoxidaseB (MAO-B). In an attempt to develop novelmechanism-basedinactivators of MAO-B, we have synthesized analogs of MPTP bearing a variety of functional groups at either the N or the C(4) position and have examined their interactions with a purified
or aggregation of ion pairs in controlling their second‐order NLO response in anhydrous chloroform solution. The combined use of electronic absorption spectra, conductimetric measurements and pulsed field gradientspinecho (PGSE) NMR experiments show that the second‐order NLO response, investigated by the electric‐field‐induced second harmonic generation (EFISH) technique, of the salts of the cationic
一系列的4-X -1-甲基吡啶鎓阳离子的非线性光学(NLO)的发色团(X =( ë )-CHCHC 6 ħ 5 ;( ê )-CHCHC 6 ħ 4 -4'--C(CH 3)3 ;( ê )-CHCHC 6 ħ 4 -4'--N(CH 3)2 ;( ê )-CHCHC 6 ħ 4 -4'--N(C 4 H ^ 9)2 ;( E,E ) - (CHCH)2 C ^ 6 ħ 4 -4'--N(CH 3)2)与各种有机的(CF 3 SO 3 - , p -CH 3 Ç 6 ħ 4 SO 3 - ),无机(I -,CLO 4 -,SCN -,[氢化2我6 ] 2-)和有机金属(顺式- [Ir(CO)2 I 2 ] -)对阴离子进行了研究,目的是研究离子对以及离子对的离解或聚集在控制无水氯仿溶液中二阶NLO反应中的作用。结合使用电子吸收光谱,电导率测量和脉冲场梯度自旋回波(PGSE)NMR
New tunable pyridinium benzenesulfonate amphiphiles as anti-MRSA quaternary ammonium compounds (QACs)
作者:Kullapa Chanawanno、Pumis Thuptimdang、Suchada Chantrapromma、Hoong-Kun Fun
DOI:10.1016/j.molstruc.2022.132389
日期:2022.4
A new class of quaternaryammonium compounds (QACs) with two different spacer lengths was developed and tested for antibacterial activity. The results of the experiments revealed that compounds with a longer cinnamoyl spacer had a broad bactericidal effect against both Gram-negative and Gram-positive bacteria with substantial anti-Methicillin-Resistant Staphylococcus aureus (anti-MRSA) activity. The
Isomerisation cis-trans de chlorure et de iodure de N-methyl β styril-4 pyridinium dans divers systemes micellaires. (λ≃468 nm). L'efficacite de l'isomerisation est grandement amelioree en presence d'agents de surface anioniques. Mecanisme. Effet de l'addition de sels
异构化 cis-trans de chlorure et de iodure de N-methyl β styril-4 pyridinium dans divers systemes micellares。(λ≃468 nm)。L'efficacite de l'isomerisation est grandement amelioree en d'agents de surface anioniques。机制。附加效应
Jerchel; Heck, Justus Liebigs Annalen der Chemie, 1958, vol. 613, p. 171,179