In the crystal structure of the title compound, [Mn(C5H7O2)2(NCS)(C5H5N)], the Mn(3+) cation is coordin-ated by two acetyl-acetonate anions, one terminal thio-cyanate anion and one pyridine ligand within a slightly distorted octa-hedron. The asymmetric unit consists of half a complex mol-ecule with the Mn(3+) cation, the thio-cyanate anion and the pyridine ligand located on a mirror plane. The ...

3,3'-dichlorobenzidine (DCB) is suspected to be arcinogenic in experimental animal and human. Several studies have investigated excretion of metabolites in urine, hemoglobin adduction and cancer incidence among workers exposed occupationally to DCB. In these researches, metabolites of DCB had a very important role. The purpose of this study was to develop the urinary monitoring method of its me...

Acetylation reaction's product(s) o f 3-[L-threo-2,3,4-trihydroxy-1-(2-naphthylhydrazono)butyl]quinoxalin-2(lH)-one (2b) were found to be dependent on the reaction condition. While the tri-O-acetyl (3b) was isolated in high yield from 2 b under the action o f acetic anhydride/ pyridine mixture, compounds 4 b and 5 b as well as trace o f 3b were obtained when 2 b was heated in acetic anhydride. ...

A series of novel substituted N-(3-acetyl-2-oxoquinolin-1(2H)-yl)benzamide (AJQC1AJQC12) have been synthesized upon refluxing 3-acetyl-1-amino-quinolin-2-one and substituted benzoic acid in the presence of dry redistilled pyridine and silicon tetrachloride as coupling agent. 3-acetyl-1-amino-quinolin-2-one (AJQ1-AJQ12) were synthesized from substituted 3-acetyl coumarin upon refluxing with hydr...

Various derivatives of adenosine were prepared by acylation of adenosine (6-amino-9-(bD-ribofuranosyl)purine (1) with different molar equivalents of acetic anhydride and/or pivaloyl chloride in pyridine. Compounds 6-acetylamino-9-[(2,3,5-tri-O-acetyl)-b-Dribofuranosyl]purine (3), 6-amino-9-[(2,3,5-tri-O-acetyl)-b-D-ribofuranosyl]purine (4), and 6-pivaloylamino-9-[(2,3,5-tri-O-pivaloyl)-b-D-ribo...

Some ruthenium (II) polypyridyl complexes with a bis-chalcone (obtained by the condensation of 3-methyl-thiophene-2-carboxaldehyde and 4-acetyl pyridine) have been synthesized and characterized spectroscopically (IR, NMR, UV/Vis), conductimetric, elemental analysis and FAB mass data. Their luminescent, redox and Li(+) binding properties have been studied. The anti-HIV and antitumour activities ...

Quaterpyridines have been demonstrated to be useful building blocks in metallo-supramolecular chemistry; however, their synthesis requires the preparation of sensitive building blocks. We present here three examples of nonsymmetric quaterpyridines that were easily obtained in yields of 70-85% by condensation of commercially available enones with 6-acetyl-2,2':6',2''-terpyridine through a Kröhnk...

The mol-ecule of the title compound, C(10)H(12)N(2)O, is approximately planar, with an r.m.s. deviation of 0.072 Å from the mean plane for the non-H atoms. It was synthesized from 2-acetyl-pyridine and N,N-dimethyl-formamide dimethyl acetal in a one-step reaction.

A series of 3-deazapurine ribonucleosides 5a–5l bearing diverse C-substituents (alkyl, aryl and heteroaryl) in the position 6 were prepared by Pd-catalyzed cross-coupling reactions of either free 6-chloro-3-deazapurine ribonucleoside 4 or its acetyl protected congener 3 followed by deprotection. An improved synthesis of the starting 4-chloro-1-(2,3,5-tri-O-acetylβ-D-ribofuranosyl)-1H-imidazo[4,...