Herein we describe the synthesis and in vitro biological evaluation of thirteen new, racemic, diversely functionalized imidazo pyranotacrines as non-hepatotoxic, multipotent tacrine analogues. Among these compounds, 1-(5-amino-2-methyl-4-(1-methyl-1H-imidazol-2-yl)-6,7,8,9-tetrahydro-4H-pyrano[2,3-b]quinolin-3-yl)ethan-1-one (4) is non-hepatotoxic (cell viability assay on HepG2 cells), a select...

Oxovanadium(iv) complexes of vitamin-B6 Schiff base, viz., [VO(HL(1)/L(2)/L(3))(B)]Cl (), where B is 2,2'-bipyridine (bpy in and ), 11-(9-acridinyl)dipyrido[3,2-a:2',3'-c]phenazine (acdppz in and ), H2L(1)·HCl is 3-hydroxy-5-(hydroxymethyl)-4-(((2-hydroxyphenyl)imino)methyl)-2-methylpyridin-1-ium chloride (in and ), HL(2) is 2-(((2-(1H-imidazol-4-yl)ethyl)imino)methyl)phenol (in ) and HL(3) is ...

Some new 3-[(5-benzylidene-2-phenyl)-3, 5-dihydro-4-H-imidazol-4-one-3-(4-bezoylhydrazono)]-indole-2-ones (VIII) have been synthesized from different isatinhydrazones (II) by condensing with 2-phenyl-5-benzylidene- 3-N (4-acetyl phenyl)-1, 5-dihydro-imidazol-4-one (VII). Their chemical structures have been confirmed by IR, 1HNMR, MASS and by elemental analysis. Investigation of antimicrobial ac...

In the crystal structure of the title complex, poly[[diazidomanganese(II)]-di-1,2-bis(imidazol-1-yl)ethaneN:N 0 ], [Mn(N3)2(C8H10N4)2]n or [Mn(N3)2(bim)2]n, where bim is 1,2-bis(imidazol-1-yl)ethane, each Mn atom is six-coordinated in a distorted octahedral coordination environment to four N atoms from four bim ligands and two N atoms from two azide ligands. The Mn atoms, which lie on inversion...

In the title compound, C(8)H(12)N(4)O(4), the essentially planar methyl-carbamoyloxymethyl group [maximum deviation 0.038 (3) Å] and the imidazole ring make a dihedral angle of 48.47 (3)°. The crystal packing is stabilized by inter-molecular N-H⋯N and C-H⋯O hydrogen bonds, which link the mol-ecules into infinite ribbons running along the a axis, and by weak π-π stacking inter-actions [centroid-...

In the title compound, C(14)H(14)BrN(5)O(3), the mean plane of the imidazole ring (r.m.s deviation = 0.004 Å) forms a dihedral angle of 58.13 (7)° with the benzene ring. In the crystal, mol-ecules are linked via N-H⋯O, C-H⋯O and C-H⋯N hydrogen bonds into a three-dimensional network. A short Br⋯Br contact of 3.4932 (2) Å also occurs.

THE TITLE COMPOUND [SYSTEMATIC NAME: 2-(imidazol-1-ylmeth-yl)isoindole-1,3-dione], C(12)H(9)N(3)O(2), was prepared by reaction of N-(bromo-meth-yl)phthalimide and imidazole in chloro-form solution. The crystal structure is stabilized by weak inter-molecular C-H⋯π inter-actions and inter-molecular π-π inter-actions with centroid-centroid distances in the range 3.6469 (8)-3.8831 (9) Å.