ES350491A1 - Procedure for the preparation of derivatives of 5-nitro-2-furil-isoxazoles. (Machine-translation by Google Translate, not legally binding)
- Google Patents
Procedure for the preparation of derivatives of 5-nitro-2-furil-isoxazoles. (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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Novartis AG
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JR Geigy AG
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Application filed by JR Geigy AGfiledCriticalJR Geigy AG
Publication of ES350491A1publicationCriticalpatent/ES350491A1/en
Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms
(AREA)
Pharmaceuticals Containing Other Organic And Inorganic Compounds
(AREA)
Abstract
Procedure for the preparation of 5-nitro-2-furyl-isoxazole derivatives of the general formula I **(See formula)** in which R1 or R2 have the same or different meaning, that is, each symbol means an alkyl group with 1 to 4 carbon atoms (unsubstituted or substituted by the hydroxyl, alkoxy or halogen group), an alkenyl group with 3 or 4 carbon atoms, a cycloalkyl group with 5 or 6 carbon atoms or an alkoxycarbonyl group whose alkyl radical consists of an alkyl group with 1 to 4 carbon atoms, or R1 means an alkenyl group with 3 or 4 carbon atoms, while R2 means hydrogen, characterized by reacting a reactive functional derivative of a carboxylic acid of a 5-nitro2-furyl-isoxazole compound of the general formula II **(See formula)** with a compound of formula III **(See formula)** or with a respective derivative that under the reaction conditions is capable of releasing a compound of formula III. (Machine-translation by Google Translate, not legally binding)
ES350491A1967-02-151968-02-14Procedure for the preparation of derivatives of 5-nitro-2-furil-isoxazoles. (Machine-translation by Google Translate, not legally binding)
ExpiredES350491A1
(en)