Inhibitory properties of aromatic thiosemicarbazones on mushroom tyrosinase: Synthesis, kinetic studies, molecular docking and effectiveness in melanogenesis inhibition
The group of 19 thiosemicarbazones (TSCs) were synthesized and its inhibitory activity toward mushroom tyrosinase and ability to inhibition of melanogenesis in B16 cells were investigated. Moreover, molecular docking of these compounds to the active site of the enzyme was performed. The obtained results allowed to make the structure-activityrelationship (SAR) analysis. Kinetic studies revealed that
Treating hepatitis C viral infections with thiosemicarbazone compounds
申请人:——
公开号:US20030176503A1
公开(公告)日:2003-09-18
Thiosemicarbazone compounds of formula:
1
and pharmaceutically acceptable salts thereof are useful for treating infection by the hepatitis C virus, treating hepatitis C or a related condition, delaying the onset of hepatitis C or a related condition, preventing hepatitis C or a related condition, and inhibiting replication of the hepatitis C virus. In the formula Q is aryl, substituted aryl, cycloalkyl, substituted cycloalkyl, cycloalkenyl, or substituted cycloalkenyl; L is absent, -alkyl-, -alkenyl-, or -alkyl-S(O)
m
-alkyl-, wherein m is an integer from zero to 2; and R
1
is —H or alkyl.
Thiosemicarbazone化合物的化学式为:
1
及其药学上可接受的盐对治疗丙型肝炎病毒感染、治疗丙型肝炎或相关疾病、延缓丙型肝炎或相关疾病的发作、预防丙型肝炎或相关疾病、以及抑制丙型肝炎病毒的复制具有用处。在该化学式中,Q代表芳基、取代芳基、环烷基、取代环烷基、环烯基或取代环烯基;L为空、-烷基-、-烯基-或-烷基-S(O)
m
-烷基-,其中m为0至2的整数;R
1
为—H或烷基。
4-(3-Nitrophenyl)thiazol-2-ylhydrazone derivatives as antioxidants and selective hMAO-B inhibitors: synthesis, biological activity and computational analysis
Abstract A new series of 4-(3-nitrophenyl)thiazol-2-ylhydrazone derivatives were designed, synthesised, and evaluated to assess their inhibitory effect on the human monoamineoxidase (hMAO) A and B isoforms. Different (un)substituted (hetero)aromatic substituents were linked to N1 of the hydrazone in order to establish robust structure–activity relationships. The results of the biological testing demonstrated
Substituted (E)-2-(2-benzylidenehydrazinyl)-4-methylthiazole-5-carboxylates as dual inhibitors of 15-lipoxygenase & carbonic anhydrase II: synthesis, biochemical evaluation and docking studies
作者:Aamer Saeed、Shafi Ullah Khan、Parvez Ali Mahesar、Pervaiz Ali Channar、Ghulam Shabir、Jamshed Iqbal
DOI:10.1016/j.bbrc.2016.11.028
日期:2017.1
substituted thiazole derivatives were designed, synthesized and characterized by FTIR, 1H, &13C NMR spectroscopy. The derivatives were then evaluated for their potential to inhibit 15-LOX and bovine carbonic anhydrase II (bCA II). Most of these compounds showed excellent inhibitory potential for 15-LOX with an IC50 of 0.12 ± 0.002 to 0.69 ± 0.5 μM and showed moderate inhibition potency for bCA II with compound
Synthesis, NMR structural characterization and molecular modeling of substituted thiosemicarbazones and semicarbazones using DFT calculations to prove the syn/anti isomer formation
作者:T. K. Venkatachalam、Gregory K. Pierens、David C. Reutens
DOI:10.1002/mrc.4041
日期:2014.3
Thiosemicarbazones possessing electron‐donating and electron‐withdrawing groups were prepared, and their spectral characteristics determined. In all cases, the spectra showed that one isomer was formed, allowing further functionalization to molecules of biological interest. We provide NMR data for some of the thiosemicarbazones and semicarbazones. We also provide evidence that for 2‐pyridyl thiosemicarbazone