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نمایش تعداد 1-5 از 5
A Straightforward Approach for the Synthesis of Novel Derivatives of Benzo [b] pyrazolo [5,1: 2,3] pyrimido [4, 5-e] [1,4] thiazine
Several derivatives of the novel benzo[b]pyrazolo[5′,1′:2,3]pyrimido[4,5-e][1,4]thiazine ring system have been synthesized through the one-pot cyclocondensation of 6-bromo-7-chloro-2-(ethylthio)5-methylpyrazolo[1,5-a]pyrimidine-3-carbonitrile (4...
Synthesis of novel heterocyclic systems of [1,2,4]triazolo[3ʹ,4ʹ:2,3]pyrimido [4,5-c] isothiazole
the desired [1,2,4]triazolo[3ʹ,4ʹ:2,3]pyrimido[4,5-c]isothiazoles (3a-c)....
Synthesis of Novel Heterocyclic System of [1,2,4] triazolo [3ʹ,4ʹ:2,3]pyrimido[4,5-c]isothiazole
the corresponding N-(4-imino-8-alkyl-5-phenyl-4,5-dihydro[1,2,4]triazolo[3',4':2,3] pyrimido[4,5-c]isothiazolo-3-yl) N-phenylamine (3a-c). Reaction of 6-Hydrazinyl-4, 5-dihydro-4-imino-N,5-diphenylisothiazolo[3,4-d]pyrimidin-3-amine (2) with carbon disulphide...
A facile approach for the synthesis of novel benzo[b]pyrazolo[5\\',1\\':2,3]pyrimido[4,5-e][1,4]thiazine derivatives
H exchange inhibitors [3]. Due to the widespread biological activities of fused heterocyclic systems, in this study, we synthesized a novel benzo[b]pyrazolo[5\\',1\\':2,3]pyrimido[4,5e][1,4]thiazine heterocyclic system. In our protocol, the desired compound...
A One-Pot Procedure for the Synthesis of Highly Functionalized Derivatives of a Novel Five-Cyclic Scaffold: Pyrazolo[ 5\\'\\',1\\'\\':2\\',3\\']pyrimido[4\\',5\\':5,6][1,4]thiazino[2,3-b]quinoxaline
to the synthesis of various
derivatives of pyrazolo[5\\'\\',1\\'\\':2\\',3\\']pyrimido[4\\',5\\':5,6][1,4]thiazino[2,3-b]quinoxaline as a
novel heterocyclic system. These potential pharmacologically active and fluorescent derivatives
(3a...