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Novartis AG
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Ciba Geigy AG
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Publication of ES264395A2publicationCriticalpatent/ES264395A2/en
Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms
(AREA)
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Abstract
Improvements in the object of the main patent no. 2,229,257, by way of the process for the preparation of heterocyclic compounds, relating to the preparation of dibenzoxazolyl-ethylenic compounds of the general formula ** (formula) ** in which a means a benzene nucleus in that two adjacent carbon atoms are members of the oxazole ring, by treatment of acylated compounds. (Machine-translation by Google Translate, not legally binding)
ES0264395A1960-01-281961-01-27Procedure for the preparation of heterocyclic compounds (Machine-translation by Google Translate, not legally binding)
ExpiredES264395A2
(en)
Procedure for the obtaining of phenotyacinic derivatives, replaced in position 3 by a monovative sulfur function (Machine-translation by Google Translate, not legally binding)
Procedure for manufacturing and obtaining compounds and derivatives of benzotidyacine-1,1-dioxides (chlorotidates) (Machine-translation by Google Translate, not legally binding)