Synthesis of new pyrido[4 ',3 ': 4,5]thieno[2,3-d]-1,2,4-triazolo[3,4-c]pyrimidines and a 5,6-dihydro-1,2,4-triazolo[4 '',3 '': 1 ',2 ']pyrido[4 ',3 ': 4,5]thieno[2,3-d]-pyrimidine ring system

Authors
Ahmed, EK Gohar, AMN Ameen, MA
Citation
Ek. Ahmed et al., Synthesis of new pyrido[4 ',3 ': 4,5]thieno[2,3-d]-1,2,4-triazolo[3,4-c]pyrimidines and a 5,6-dihydro-1,2,4-triazolo[4 '',3 '': 1 ',2 ']pyrido[4 ',3 ': 4,5]thieno[2,3-d]-pyrimidine ring system, PHARMAZIE, 55(1), 2000, pp. 31-34
Citations number
14
Categorie Soggetti
Pharmacology & Toxicology
Journal title
PHARMAZIE
ISSN journal
00317144 → ACNP
Volume
55
Issue
1
Year of publication
2000
Pages
31 - 34
Database
ISI
SICI code
0031-7144(200001)55:1<31:SONP''>2.0.ZU;2-B
Abstract
A series of substituted pyrido[4',3':4,5]thieno[2,3-d]-1,2,4-triazolo[3,4-c ]pyridimidines 4-6, 8, pyrido[4',3':4,5]thieno[2,3-d]-1,2,4-triazolo[3,4-c] pyrimidines 11-13 and 5,6-dihydro-1,2,4-triazolo[4",3":1',2']pyrido[4',3':4 ,5]thieno[2,3-d]pyrimidines 16-19 have been synthesized from 3, 10 and 15 t hrough the reaction with orthoesters and carbon disulphide, respectively.