| http://www.w3.org/ns/prov#value | - Still another preferred embodiment of the present invention is a process for the preparation of a quinazoline of formula V ##STR6## which comprises the consecutive steps of (a) treating a cyanourea having formula VI ##STR7## with about a molar equivalent of a mixture of phosphorus trichloride or phosphorus pentachloride in a solvent amount of phosphorus oxychloride until cyclization is essentially
|
