A new chromophore, 2-(4-nitrophenyl)-1H-indole (NPI), was synthesized as a potential photolabile protecting group. Caged benzoic acids featuring the NPI chromophore were model compounds. Benzoic acid released in moderate yields (~ 40–60%) upon photolysis of caged without any additional chemical reagents. Interestingly, an aldehyde, 1-(5-(1-formyl-1H-indol-2-yl)-2-nitrophenyl)ethyl benzoate, iso...

The reaction of 1-(5-methyl-1-(4-nitrophenyl)-1H-1,2,3-triazol-4-yl)ethan-1-one (1) with excess hydroxylamine hydrochloride (2 mole equivalents) in dry ethanol afforded (E)-1-(5-methyl-1-(4-nitrophenyl)-1H-1,2,3-triazol-4-yl)ethan-1-one oxime (2) 86% yield. structure the new heterocycle 2 was confirmed using nuclear magnetic resonance spectroscopy, single crystal X-ray and elemental analysis.

A convenient two-step method for the synthesis of novel 1,3-benzoxathiol-2-ones and naphtho[2,1-d][1,3]oxathiol-2-ones bearing (1H-tetrazol-1-yl)phenyl motif was developed. As a key step synthesis, an arylation quinones (1,4-benzoquinone, 1,4-naphtho-quinones) with (1H-tetrazol-1-yl)arenediazonium salts studied efficient protocols were elaborated to obtain variety substituted ((1H-tetrazol-1-yl...

Two new coordination polymers, namely, poly[[μ3-3-(1H-benzimidazol-2-yl)propionato]zinc(II)], [Zn(C10H8N2O2)] n , (1), and poly[bis-[μ2-3-(1H-benzimid-azol-2-yl)propionato]cadmium(II)], [Cd(C10H8N2O2)2] n , (2) have been synthesized from 3-(1H-benzoimidazol-2-yl)propanoic acid ligands through a mixed-ligand synthetic strategy under a solvothermal environment, and studied by single-crystal X-ray...

2 The present work deals with the synthesis of some novel heterocyclic compounds such as benzoxazoles , 7, 13 and 19, imidazoles 3, 8, 14 and 20, benzimidazoles 4, 9, 15 and 21, and tetrazoles 10, 16, and 22. The synthesized compounds were characterized by IR, 1H NMR, mass spectrometry and elemental analysis. The compounds were evaluated for cytotoxicity against human cancer cell lines such as ...

The crystal structures of four indole derivatives with various substituents at the 2-, 3- and 5-positions of the ring system are described, namely, ethyl 3-(5-chloro-2-phenyl-1H-indol-3-yl)-3-phenyl-propano-ate, C25H22ClNO2, (I), 2-bromo-3-(2-nitro-1-phenyl-eth-yl)-1H-indole, C16H13BrN2O2, (II), 5-meth-oxy-3-(2-nitro-1-phenyl-eth-yl)-2-phenyl-1H-indole, C23H20N2O3, (III), and 5-chloro-3-(2-nitr...

Based on a known pharmacophore model for 5-HT₆ receptor antagonists, a series of novel extended derivatives of the N-arylsulfonyindole scaffold were designed and identified as a new class of 5-HT₆ receptor modulators. Eight of the compounds exhibited moderate to high binding affinities and displayed antagonist profile in 5-HT₆ receptor functional assays. Compounds 2-(4-(2-methoxyphenyl)piperazi...