SYNTHESIS OF PURINOBENZOTHIAZINE AND PYRIDOTHIAZINOPURINE DERIVATIVES- 2 NEW HETEROCYCLIC RING-SYSTEMS

Authors
DASETTIMO A MARINI AM PRIMOFIORE G DASETTIMO F BERTINI D
Citation
A. Dasettimo et al., SYNTHESIS OF PURINOBENZOTHIAZINE AND PYRIDOTHIAZINOPURINE DERIVATIVES- 2 NEW HETEROCYCLIC RING-SYSTEMS, Journal of heterocyclic chemistry, 35(1), 1998, pp. 57-60
Citations number
6
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
Journal of heterocyclic chemistry → ACNP
ISSN journal
0022152X
Volume
35
Issue
1
Year of publication
1998
Pages
57 - 60
Database
ISI
SICI code
0022-152X(1998)35:1<57:SOPAPD>2.0.ZU;2-#
Abstract
The synthesis of derivatives of two new heterocyclic systems, purino[8 ,7-b][1,3]benzothiazine and pyrido[3',2':5,61[1,3]thiazino[3,2-f]purin e, was effected by the Ullmann reaction between 8-mercaptotheophylline or 8-bromotheophylline with the appriopriately substituted benzoic or nicotinic acid, respectively. The 8,8'-dithiobistheophylline is also reported.