http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0228094-A2

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filingDate 1986-12-30-04:00^^<http://www.w3.org/2001/XMLSchema#date>
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publicationDate 1987-07-08-04:00^^<http://www.w3.org/2001/XMLSchema#date>
publicationNumber EP-0228094-A2
titleOfInvention Pyrimido[5,4-b][1,4]oxazine derivatives, process for their preparation, medicament containing them and intermediate pyrimido[5,4-b][1,4]oxazine derivatives
abstract R, für einen Alkylrest steht, R 2 ein Wasserstoffatom, ein Halogenatom, eine Azidogruppe, eine Hydrazinogruppe oder einen Rest der allgemeinen Formeln in welchletzterer R 5 für ein Wasserstoffatom, einen, gegebenenfalls substituierten, Alkylrest oder Benzylrest steht und R 6 ein Wasserstoffatom, eine Aminogruppe, einen Cycloalkylrest, einen, gegebenenfalls substituierten, Phenyl- oder Phenoxyrest oder einen, gegebenenfalls substituierten, Alkylrest darstellt oder R 5 und R 6 zusammen mit dem Stickstoffatom, an welches sie gebunden sind, einen, gegebenenfalls substituierten, 6- gliedrigen gesättigten heterocyclischen Rest darstellen, bedeutet, R 3 und R 4 voneinander unabhängig für ein Wasserstoffatom oder einen Alkylrest stehen und R 9 ein Wasserstoffatom, einen, gegebenenfalls durch eine Oxogruppe, eine Cyanogruppe, einen Aminocarbonylrest, einen Alkoxycarbonylrest, einen Pyridylrest, einen Morpholinylcarbonylrest oder einen Phenylrest monosubstituierten oder durch 1 oder mehr Hydroxygruppe (n) substituierten, Alkylrest bedeutet, sowie ihre Säureadditionssalze. The invention relates to pyrimido [5,4-b] [1,4] oxazine derivatives of the general formula wherein R represents an alkyl radical, R 2 represents a hydrogen atom, a halogen atom, an azido group, a hydrazino group or a radical of the general formula in the latter R 5 represents a hydrogen atom, an optionally substituted alkyl radical or benzyl radical and R 6 represents a hydrogen atom, an amino group, a cycloalkyl radical, an optionally substituted, phenyl or phenoxy radical or an optionally substituted alkyl radical or R 5 and R 6 together with the nitrogen atom to which they are attached represent an optionally substituted, 6-membered saturated heterocyclic radical, R 3 and R 4 independently of one another represent a hydrogen atom or an alkyl radical and R 9 represents a hydrogen atom, an alkyl radical optionally substituted by an oxo group, a cyano group, an aminocarbonyl radical, an alkoxycarbonyl radical, a pyridyl radical, a morpholinylcarbonyl radical or a phenyl radical or substituted by 1 or more hydroxyl group (s), and their acid addition salts. n n n The invention further relates to a process for the preparation of these compounds and medicaments containing them and intermediates for the preparation of the former.
priorityDate 1985-12-30-04:00^^<http://www.w3.org/2001/XMLSchema#date>
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