Synthesis, In silico studies and In vitro evaluation for antioxidant and antibacterial properties of diarylmethylamines: A novel class of structurally simple and highly potent pharmacophore
摘要:
A series of novel diarylmethylamines were synthesized via simple three component condensation reaction. In vitro antibacterial activity of the synthesized compounds was assessed against Gram-positive and Gram-negative bacteria. Compound 1f containing phenyl and N-methyl piperazine moiety was found to be potent against both pathogenic bacteria with MIC value of 31 mu g/mL. Diarylmethylamine 1l containing sesamol and N-methyl piperazine units was found to be the most effective against Gram-positive bacteria with MIC value of 15 mu g/mL. The compound leads to the damage of the bacterial cell membrane which was demonstrated by flow cytometry (FC) and field emission scanning electron microscopy (FESEM). Radical scavenging activity of compounds 1l and 1m was found out to be comparable with that of standard antioxidant BHT. Further, in silico studies were carried out to calculate the physico-chemical parameter of the synthesized compounds. (C) 2016 Elsevier B.V. All rights reserved.
S-perfluoroalkyl substituted hydroxybenzylthioethers and derivatives as surface modifiers
申请人:Gerster Michèle
公开号:US20090326145A1
公开(公告)日:2009-12-31
The invention describes a process for reducing the surface energy of organic materials such as for example increasing the oil and water repellency and stain release of organic materials, which comprises treating the organic material with at least a compound of the formula I wherein the general symbols are as defined in claim 1; especially wherein at least one of the radicals R
2
, R
3
or R
4
is —CH(R
11
)—S(O)
p
—R
12
; R
11
is hydrogen, C
1
-C
8
alkyl, unsubstituted or with C
1
-C
4
alkyl substituted phenyl; R
12
is a monovalent perfluorinated alkyl or alkenyl, linear or branched organic radical having four to twenty fully fluorinated carbon atoms, and p is 0, 1 or 2.
[EN] STABILIZATION AND SURFACE MODIFICATION OF ORGANIC MATERIALS<br/>[FR] STABILISATION ET MODIFICATION DE SURFACE DE MATIÈRES ORGANIQUES
申请人:BASF SE
公开号:WO2009127514A1
公开(公告)日:2009-10-22
Organic materials which possess outstanding stability to oxidative, thermal or light-induced degradation and/or are able to reduce the surface energy of organic materials comprise at least one compound of the formula (I) wherein the general symbols are as defined in claim 1.
Polyester and polyamide compositions of low residual aldehyde content
申请人:Tinkl Michael
公开号:US20050176859A1
公开(公告)日:2005-08-11
A mixture of a polyester or a polyamide, such as poly(ethylene terephthalate) PET, and a suitable stabilizer selected from the group consisting of certain Mannich base compounds, when extrusion compounded exhibits a lower residual acetaldehyde content than does PET or polyamide alone when similarly treated. The invention pertains to any polyester or polyamide used in the manufacture of molded articles, fibers, or films, for instance bottles or containers which are used to store consumer materials, for example food, beverages and water.