Design and synthesis of VEGFR-2 tyrosine kinase inhibitors as potential anticancer agents by virtual based screening
作者:Harun M. Patel、Pankaj Bari、Rajshekhar Karpoormath、Malleshappa Noolvi、Neeta Thapliyal、Sanjay Surana、Pritam Jain
DOI:10.1039/c5ra05277g
日期:——
Vascularendothelialgrowthfactor receptor-2 (VEGFR-2) plays a crucial role in cancer angiogenesis. A library of 6,7-dimethoxy quinazoline was prepared using a ligand based drug design approach and passed through different filters of virtual screening such as a docking study and Lipinski's rule. Twenty virtually screened compounds were synthesized and investigated against VEGFR-2 kinase and human
Heterocyclic compounds from urea derivatives. Part XVIII. Adducts from aminoguanidines and aroyl isothiocyanates and their cyclisation
作者:Frederick Kurzer
DOI:10.1039/j39700001805
日期:——
1-Amidino-4-benzoyl(thiosemicarbazide) hydrochloride is cyclised by hydrochloric or orthophosphoric acid to 2-amino-5-benzamido-1,3,4-thiadiazole, by acetic anhydride to the corresponding acetyl derivative, and by alkali to 3-mercapto-5-phenyl-1,2,4-triazole. 1-Amino-2-phenylguanidine salts undergo an analogous series of reactions. The mechanism of these addition–cyclisations is discussed and correlated
Heterocyclic compounds from urea derivatives. Part XIX. Adducts from diaminoguanidines and aroyl isothiocyanates and their cyclisation
作者:Frederick Kurzer
DOI:10.1039/j39700001813
日期:——
1-Aminoamidino-4-aroyl(thiosemicarbazides) are produced in high yield from equimolar proportions of aroyl isothiocyanates and NN′-diaminoguanidine salts in aqueous methanol. They are bases and form hydrazones. Both the adducts and their hydrazones are ring-closed by alkali to 3-aryl-5-mercapto-1,2,4-triazoles. The cyclisation of 1-aminoamidino-4-aroyl(thiosemicarbazides) by acids affords, with loss