Synthesis, characterization, α-glucosidase inhibition and molecular modeling studies of some pyrazoline-1H-1,2,3-triazole hybrids
摘要:
A series of molecular hybrids based on pyrazoline and 1,2,3-triazole pharmacophores were designed and synthesized as antidiabetic agents. The structures of all the derivatives were con fi rmed using H-1 NMR, C-13 NMR and HRMS. Moreover, the structure of one of the intermediate precursor was con fi rmed using single crystal X-ray diffraction. The anti-diabetic potential of all the synthesized compounds was explored in terms of a-glucosidase inhibition studies. All the compounds exhibited remarkable inhibition of a-glucosidase. The inhibition of enzyme by compound TPZ2 (IC50 = 41.29 +/- 0.123) and TPZ8 (IC50 = 47.94 +/- 0.246) was found to be more promising as compared to the reference drug i.e., Acarbose (IC50= 60.68 +/- 0.123). The inhibition of a-glucosidase was further supported by in silico docking studies. In order to explore the most favorable binding interactions the binding pose of lowest energy was then subjected to molecular dynamics studies. Both the ligands have reasonable interactions with the protein active site with average interaction energy of- 270.88 kcal/mol and- 273.90 kcal/mol for TPZ8 and TPZ2 , respectively. (C) 2020 Elsevier B.V. All rights reserved.
Synthesis, antimalarial and antitubercular activity of acetylenic chalcones
作者:Renate H. Hans、Eric M. Guantai、Carmen Lategan、Peter J. Smith、Baojie Wan、Scott G. Franzblau、Jiri Gut、Philip J. Rosenthal、Kelly Chibale
DOI:10.1016/j.bmcl.2009.12.062
日期:2010.2
A series of acetylenic chalcones were evaluated for antimalarial and antitubercular activity. The antimalarial data for this series suggests that growth inhibition of the W2 strain of Plasmodium falciparum can be imparted by the introduction of a methoxy group ortho to the acetylenic group. Most compounds were more active against non-replicating than replicating cultures of Mycobacterium tuberculosis
The positional isomeric units of substituted chalcones were synthesized using [CuBr(PPh3)(3)] as source of catalyst. The alkynes (1a-9a) were fabricated with azides resulting into triazole moiety containing triethoxysilane substituents (1b-9b) which were further converted into silatranes 1c-9c. The synthesized compounds were confirmed by spectroscopic analytical studies like NMR (1H, 13C), IR, mass recognition studies confirm the silatrane product formation. (C) 2016 Elsevier Ltd. All rights reserved.