ES304704A1 - Procedure for the obtaining of derivatives of tieno-benzotiapirano. (Machine-translation by Google Translate, not legally binding)
- Google Patents
Procedure for the obtaining of derivatives of tieno-benzotiapirano. (Machine-translation by Google Translate, not legally binding)
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Sandoz AG
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Sandoz AG
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Priority claimed from CH1233563Aexternal-prioritypatent/CH433386A/en
Application filed by Sandoz AGfiledCriticalSandoz AG
Publication of ES304704A1publicationCriticalpatent/ES304704A1/en
Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur
(AREA)
Abstract
"Process for the preparation of basically substituted thieno-benzothiapyran derivatives" of general formula I, ** (See formula) ** where R1 and R2 are hydrogen radicals or a methyl group and R3 and R4 each, an alkyl group having 1-4 carbon atoms or together by an alkylene chain, which may be interrupted, if appropriate, by a nitrogen atom substituted by a alkyl group with 1-4 carbon atoms, or for an oxygen atom or R4 is an alkyl group with 1-4 carbon atoms and R3 is linked with R1 by a di- or trimethylenic chain or R3 with R2 by a tri-chain - or tetramethylene and R5 is a halogen, an alkoxy- or alkyl-mercapto group with each time 1-4 carbon atoms, and their salts with organic or inorganic acids, characterized in that a compound of the general formula IV, ** (See formula) ** where R1 - R5 have the indicated meaning, it is subjected to a dissociation of water. (Machine-translation by Google Translate, not legally binding)
ES0304704A1963-10-081964-10-06Procedure for the obtaining of derivatives of tieno-benzotiapirano. (Machine-translation by Google Translate, not legally binding)
ExpiredES304704A1
(en)
A procedure for the preparation of heterociclic compounds of the type of pinanopirazoles. (Machine-translation by Google Translate, not legally binding)