Ketonethiosemicarbazones: Structure–activity relationships for their melanogenesis inhibition
作者:Pillaiyar Thanigaimalai、Ki-Cheul Lee、Vinay K. Sharma、Eunmiri Roh、Youngsoo Kim、Sang-Hun Jung
DOI:10.1016/j.bmcl.2011.04.146
日期:2011.6
A series of 2-(1-phenylalkylidene)hydrazinecarbothioamides 2, 2-(1-phenylalkyl)hydrazinecarbothioamides 3, 2-(3,4-dihydronaphthalen-1(2H)-ylidene)hydrazinecarbothioamide (4), and 2-(1-(thiophen-2-yl)ethylidene)hydrazinecarbothioamide (5) were synthesized for their melanogenesis inhibition in melanoma B16 cells. The SAR of these ketonethiosemicarbazones revealed that the benzylidene hydrogen in ald
Synthesis of Some Novel 1,4-Phenylene-<i>bis</i>-thiazolyl Derivatives and Their Anti-hypertensive α-blocking Activity Screening
作者:Fathy M. Abdelrazek、Sobhi M. Gomha、Peter Metz、Mohamed M. Abdalla
DOI:10.1002/jhet.2633
日期:2017.1
A series of novel 1,4‐phenylene‐bis‐thiazolyl derivatives were synthesized and evaluated for their anti‐hypertensive activities as α‐blocking agents and some of them showed promising activities.
Efficient “on water” green route heterocyclization of thiosemicarbazones with DMAD
作者:Rohit Singla、Deepika Gautam、Poonam Gautam、R. P. Chaudhary
DOI:10.1080/10426507.2015.1073282
日期:2016.5.3
thiazolidin-4-one derivatives in water from cyclocondensation reaction of thiosemicarbazone derivatives and dimethylacetylene dicarboxylate (DMAD) in good yield is reported. The regiochemistry of the cyclized products is established by elemental analysis, IR, NMR, and mass spectral data. A single crystal X-ray diffraction study of a representative compound, 3f, is reported.
Synthesis and evaluation of biological activities of 4-cyclopropyl-5-(2-fluorophenyl) arylhydrazono-2,3-dihydrothiazoles as potent antioxidant agents
作者:F. Ghanbari Pirbasti、Nosrat O. Mahmoodi、Jafar Abbasi Shiran
DOI:10.1080/17415993.2015.1122009
日期:2016.3.3
high purities. Antioxidantactivity of products was evaluated using DPPH (2,2-diphenyl-2-picrylhydrazyl) and ABTS 2,2-azinobis(3-ethylbenzothiazoline-sulfonate) assays. Products showed higher antioxidantactivity using the ABTS method. Compounds 5c and 5g showed lower IC50 values compared with ascorbic acid as a standard. Compounds 5a–5h possessed moderate to high antioxidantactivity by both methods
Synthesis, spectral characterization and biological evaluation of copper(II) and nickel(II) complexes with thiosemicarbazones derived from a bidentate Schiff base
NMR, IR and single crystallographic studies. All the complexes were characterized by elemental analyses, magnetic moments, IR, electronic and EPR spectralstudies. The IR spectral data of ligand indicated the involvement of sulfur and azomethine nitrogen in coordination to the central metal ion. The copper(II) and nickel(II) complexes were found to have magnetic moments1.93-1.96BM and 2.91-2.94BM corresponding