119584-74-6Relevant articles and documents
USE OF A QUINAZOLINE COMPOUND IN PREPARING A MEDICAMENT AGAINST FLAVIVIRIDAE VIRUS
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Paragraph 0055-0056, (2013/10/08)
Disclosed is a use of a quinazoline compound of Formula I having 2,4-diaminoquinazoline as a parent nucleus in preparation of a medicament for treating diseases caused by flaviviridae infection, especially a use in combating Hepatitis C virus infection and Dengue fever virus infection.
Direct Synthesis of 2,4-Diaminoquinazolines from 2-Fluorobenzonitriles
Hynes, John B.,Pathak, Alpana,Panos, Constantina H.,Okeke, Claudia C.
, p. 1173 - 1177 (2007/10/02)
In a search for new methods for preparing 2,4-diaminoquinazolines having a diversity of substituents in the benzenoid ring, it was found that the reaction of 2,6-difluorbenzonitrile with guanidine carbonate gave 2,4-diamino-5-fluoroquinazoline in excellent yield.Extension of this approach to other 2-fluorobenzonitriles, some of which were elaborated for the first time, showed that this reaction possesses considerable generality.The cyclization was sucessful even when electron donating groups were present at position six.Only in two cases where a primary or secondary amino group was also present ortho to the cyano group was this transformation unsucessful.