ES400123A1 - Procedure for preparation of tetrahydropyrimidine derivatives. (Machine-translation by Google Translate, not legally binding)
- Google Patents
Procedure for preparation of tetrahydropyrimidine derivatives. (Machine-translation by Google Translate, not legally binding)
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Sanofi Aventis France
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Roussel Uclaf SA
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Priority claimed from FR7106436Aexternal-prioritypatent/FR2127143A5/fr
Application filed by Roussel Uclaf SAfiledCriticalRoussel Uclaf SA
Publication of ES400123A1publicationCriticalpatent/ES400123A1/en
Preparation procedure for compounds of general formula I ** (See formula) ** in which R1 represents a hydrogen atom, a chlorine atom or an atom bromine and n is an integer equal to 3 or 4, characterized in that, in the presence of a basic agent, the β-phenyl- β-amino-acrylate of alcohol of general formula III is condensed: ** (See formula) ** <br/> <br/> in which alc represents a lower alcohol radical, with tetrahydrofuranyl isocyanate or tetrahydropyranyl isocyanate, the β-( N'2-tetrahydro-heterocyclo-ureido) - β-Phenyl-alcoholic acrylate resulting from general formula II: ** (See formula) ** en which n is an integer equal to 3 or 4 to obtain the compound of general formula I ': ** (See formula) ** that is eventually treated by means of a halogenating agent to obtain the compound of general formula I '': ** (See formula) ** in which R'1 represents a chlorine or bromine atom. (Machine-translation by Google Translate, not legally binding)
ES400123A1971-02-251972-02-24Procedure for preparation of tetrahydropyrimidine derivatives. (Machine-translation by Google Translate, not legally binding)
ExpiredES400123A1
(en)
A procedure for preparing the isomero without the compounds of 3-cefem-4-carboxylic acid replaced in positions 3 and 7. (Machine-translation by Google Translate, not legally binding)