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Novartis AG
BASF Schweiz AG
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Ciba Geigy AG
Ciba AG
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Publication date
Priority claimed from CH1270267Aexternal-prioritypatent/CH490369A/en
Application filed by Ciba Geigy AG, Ciba AGfiledCriticalCiba Geigy AG
Publication of ES357960A1publicationCriticalpatent/ES357960A1/en
Procedure for obtaining d-glucofuranosides, of the formula **(See formula)** wherein each of the radicals R3, R5 and R6 signifies a hydrocarbon residue, optionally substituted, provided that R3, R5 and R6 together contain at least 4 carbon atoms, as well as the acyl derivatives thereof or the salts of the compounds showing a salt-forming radical, characterized in that a compound of the formula **(See formula)** wherein Y means a hydrocarbon residue, optionally substituted and Z a hydrogen atom or an acyl radical, or Y and Z together mean a methylene radical X, optionally substituted, are treated with acid in aqueous medium and a product obtained, if desired, it is cleaned, in all cases, however, when it is a product other than a D-glucofuranose of the formula **(See formula)** wherein one of the radicals R'3, R'5 and R'6 signifies a benzyl residue substituted on the phenyl ring by a halogen atom or a lower alkyl radical and each of the others signifies a benzyl residue, in case given, substituted by the phenyl ring, or in which R'3 signifies a lower aliphatic hydrocarbon residue and each of the residues R'5 and R'6 a benzyl residue, optionally substituted in the phenyl ring, or a acyl derivative or a salt of a compound of these containing a salt-forming radical, and/or, if desired, in an obtained compound an unsaturated residue is transformed into a saturated residue and/or, if desired, a compound obtained is transformed into an acyl derivative, or an acyl derivative in the free hydroxy compound and/or, if desired, a compound obtained by a salt-forming group is transformed into a salt or a obtained salt is transformed into the free compound and/or a mixture of anomers obtained is separated into the different anomers. (Machine-translation by Google Translate, not legally binding)
ES357960A1967-09-111968-09-09Procedure for obtaining d-glucofuranosides. (Machine-translation by Google Translate, not legally binding)
ExpiredES357960A1
(en)
Procedure for the preparation of new compounds of 1,4-benzodioxane and 1,5-benzodioxepane (Machine-translation by Google Translate, not legally binding)
A procedure for the preparation of heterociclic compounds of the type of pinanopirazoles. (Machine-translation by Google Translate, not legally binding)
Procedure for obtaining new derivatives of piperidil-2 phenylmethanols and their added salts (Machine-translation by Google Translate, not legally binding)