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RISSynthesis and characterization of novel 4-(1-(pyrimidin-4-yl)ethyl)-12H-pyrimido[4\\\\\\',5\\\\\\':5,6][1,4]thiazino[2,3-b]quinoxaline derivatives
been reported in the literature.1,3 Herein, we report an efficient one-pot synthetic approach to the synthesis of new 4-(1-(pyrimidin-4-yl)ethyl)-12H-pyrimido[4\\\\\\',5\\\\\\':5,6][1,4]thiazino[2,3-b]quinoxaline derivatives from 5-bromo-4-[1-(5-bromo...
An alternative approach to the synthesis of new pyrimido[5′,4′:5,6][1,4] thiazino[2,3-b]quinoxaline derivatives
An alternative approach to the synthesis of a series of new pyrimido[5′,4′:5,6][1,4]thiazino[2,3-b]quinoxaline derivatives is described. Reaction of 5‑bromo-2,4-dichloro-6-methylpyrimidine and 3‑aminoquinoxaline-2-thiol leads to the key intermediate...
Synthesis and Antioxidant Evaluation of Quinoxalino[2′,3′:5,6][1,3,4]thiadiazino[2,3-b]quinazolin-15-ones: Derivatives of a Novel Ring System
Quinoxalino[20,30:5,6][1,3,4]thiadiazino[2,3-b]quinazolin-15-one, a novel fused heterocyclic system, was
synthesized from a one-pot condensation reaction of 2,3-dichloroquinoxaline and 3-amino-2-thioxo-2,3-
dihydroquinazolin-4(1H...
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...
Synthesis of pyrimido [4′,5′:5,6] [1,4] dithiepino [2,3- b] quinoxalines: Derivatives of a novel seven membered ring system
A convenient and efficient procedure for the synthesis of tetracyclic dithiepin derivatives is described
through the condensation reaction of 2,4-dichloro-5-(chloromethyl)-6- methylpyrimidine and quinoxaline-
< ...
Synthesis, Characterization and In Vitro Antibacterial Evaluation of Novel 4-(1-(Pyrimidin-4-yl)Ethyl)-12H-Pyrimido[4′,5′:5,6][1,4]Thiazino[2,3-b]Quinoxaline Derivatives
A new methodology for the synthesis of 4-(1-(pyrimidin-4-yl)ethyl)-12H-pyrimido[40,50:5,6][1,4]thiazino[2,3-b]quinoxaline derivatives 5a-g was introduced. Condensation of 5-bromo-4-[1-(5-bromo-2,6-dichloropyrimidin-4-yl)ethyl]-2-chloro-6...