147-61-5Relevant articles and documents
Synthesis of dihydrobenzo[b]pyrimido[4,5-e][1,4]thiazepines; derivatives of a novel ring system
Akbarzadeh, Marzieh,Bakavoli, Mehdi,Eshghi, Hossein,Shiri, Ali,Tajabadi, Javad
, p. 531 - 534 (2015)
Several derivatives of the novel dihydrobenzo[b]pyrimido[4,5-e][1,4]thiazepine ring system have been synthesised through the initial heterocyclisation of 2,4-dichloro-5-(chloromethyl)-6-methylpyrimidine with o-aminothiophenol followed by treatment with various secondary amines in boiling ethanol.
Synthesis of 2-substituted-4-methyl-5,13-dihydropyrimido[4′,5′:5,6][1,4]thiazepino[2,3-b]quinoxaline as a new heterocyclic system
Akbarzadeh, Marzieh,Bakavoli, Mehdi,Eshghi, Hossein,Shiri, Ali,Azizollahi, Hamid,Mague, Joel T.
, p. 545 - 551 (2018)
2-Substituted-4-methyl-5,13-dihydropyrimido[4′,5′:5,6][1,4]thiazepino[2,3-b]quinoxalines (7a-g), derivatives of a new heterocyclic system were synthesized through cyclocondensation of 2,4-dichloro-5-(chloromethyl)-6-methylpyrimidine (3) with 3-aminoquinoxaline-2-thiol (4) and subsequent substitution by various secondary amines. Regioselective heterocyclization was confirmed by X-ray crystallographic analysis for 4-methyl-2-(pyrrolidin-1-yl)-5,13-dihydropyrimido[4′,5′:5,6] [1,4]thiazepino[2,3-b]quinoxaline (7a).
Synthesis of the novel bicyclic oxepinopyrimidine and fluorinated pyrrolidinopyrimidines
Batinac, Sanja,Sermek, Draginja Mrvo?,Cetina, Mario,Paveli?, Kre?imir,Mintas, Mladen,Rai?-Mali?, Silvana
, p. 2523 - 2536 (2004)
The new 5,6-disubstituted pyrimidine nucleoside analogues (5-8) were synthesized by addition of the C-6 lithiated pyrimidine derivative to oxirane as key reaction step. The bicyclic tetrahydrooxepinopyrimidine (9) and fluorinated pyrrolidinopyrimidines (12 and 15) were obtained by intramolecular linkage of acyclic chain to the CH2-5 and N-1 of the pyrimidine ring. The structure of compound (9) containing pyrimidine and tetrahydrooxepine skeleton was determined unequivocally by its X-Ray crystal structure analysis.
Regioselective synthesis of new 5-methyl-5H-pyrimido[4′,5′:4,5][1,3]thiazino [3,2-a]perimidines
Firoozi, Neda,Bakavoli, Mehdi,Eshghi, Hossein,Ramezanian, Navid
, p. 488 - 495 (2017)
A convenient and efficient regioselective synthesis of new pyrimido[4′,5′:4,5] [1,3]thiazino[3,2-a]perimidines is described through intermolecular heterocyclization of 2,4-dichloro-5-(chloromethyl)-6-methylpyrimidine and 1H-perimidine-2(3H)-thione in short reaction times under mild conditions.