نتایج جستجو برای: semicarbazones
تعداد نتایج: 186 فیلتر نتایج به سال:
The general antibacterial action in vitro of a variety of furan derivatives substituted in the 5 position with a nitro group has been reported by Dodd and Stilhnan (1, 2). That the presence of the nitro group is essential was established by comparison of the activities with those of the corresponding non-nitrated derivatives. All the nitrofurans except those limited by insolubility exhibited a ...
lanthanide(iii) chloro complexes of 4[n-(4’-hydroxy-3’-methoxybenzalidene) amino] antipyrine semicarbazone (hmbaaps) (i) and 4[n-(3’,4’,5’-trimethoxybenzalidene) amino] antipyrine semicarbazone (tmbaaps) (ii) with the general composition lncl3.2l (ln = la, pr, nd, sm, gd, tb, dy or ho; l = hmbaaps or tmbaaps) are reported. all the complexes were synthesized in ethanolic medium and refluxed the ...
N(4)-phenyl substituted semicarbazones and thiosemicarbazones (1-4) of propiophenone and 4’methylacetophenone have been synthesized and characterized by spectrometrical methods analyses (IR, RMN H &C, SM). All compounds were evaluated for their in vitro trypanosomal activity against the bloodstream form of the strain 427 of Trypanosomabruceibrucei and have been tested on larvaeofbrine shrimp, A...
1. Oxidation of vitamin A acetate with monoperphthalic acid gave 5,6-monoepoxyvitamin A acetate, C(22)H(32)O(3), obtained as pale-yellow crystals, m.p. 65-66 degrees . 2. Saponification of 5,6-monoepoxyvitamin A acetate yielded 5,6-monoepoxyvitamin A alcohol, which was readily oxidized with manganese dioxide to 5,6-monoepoxyvitamin A aldehyde, obtained as yellow crystals, m.p. 101-102 degrees ....
A series of 5,7-dibromoisatin semicarbazones have been synthesized in good yield, involving aryl urea and aryl semicarbazide formation. The structures of the synthesized compounds were confirmed on the basis of their spectral data. All the compounds were evaluated for anticonvulsant and CNS depressant activities. Anticonvulsant activity was determined after intraperitoneal (i.p.) administration...
A series of N-methyl/acetyl 5-(un)-substituted isatin-3-semicarbazones were screened for anticonvulsant and sedative-hypnotic activities. The results revealed that protection was obtained in all the screens i.e., Maximal electroshock, (MES) subcutaneous pentylene tetrazole (scPTZ) and subcutaneous strychnine (scSTY) screens. Three compounds (5a, 5e and 5i) possessed anti-MES activity and all th...
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