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Wellcome Foundation Ltd
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Wellcome Foundation Ltd
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Priority to ES0255172ApriorityCriticalpatent/ES255172A1/en
Publication of ES255172A1publicationCriticalpatent/ES255172A1/en
Low-Molecular Organic Synthesis Reactions Using Catalysts
(AREA)
Catalysts
(AREA)
Abstract
A method for the preparation of compounds of the formula ** (See formula) ** wherein R1 is an alkyl group having 1 to 6 carbon atoms and R2 is a hydrogen atom or an alkyl group having 1 to 6 carbon atoms, or R1 and R2 together form a trimethylene or tetramethylene group, which comprises the distillation of the corresponding 7-mercapto or 7-alkyl mercapto 2,4-diaminopyrido (2,3-d) pyrimidines using Raney nickel catalyst. (Machine-translation by Google Translate, not legally binding)
ES0255172A1960-01-211960-01-21A method for the preparation of pyrimidine compounds (Machine-translation by Google Translate, not legally binding)
ExpiredES255172A1
(en)