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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Publication date
Priority claimed from CH284568Aexternal-prioritypatent/CH514578A/en
Application filed by Sandoz AGfiledCriticalSandoz AG
Publication of ES364043A1publicationCriticalpatent/ES364043A1/en
Procedure for obtaining glucoside derivatives of formula I, **(See formula)** wherein R1 signifies an alkyl radical containing from 1 to 5 carbon atoms, characterized in that a 4'-demethylepipodophyllotoxin derivative of formula II is condensed, **(See formula)** wherein R3 is a substituted or unsubstituted phenyl radical, with a 4,6-O-alkylidene-glucopyranose of formula III, in which R1 has the meaning indicated above, and means the formyl or acetyl radical, in the presence of boron trifluoride in a solvent that is inert under the reaction conditions, and then the protecting radicals are cleaved from the resulting compounds of formula IV, **(See formula)** in which R1, R2, and R3 have the meanings indicated above. (Machine-translation by Google Translate, not legally binding)
ES364043A1968-02-271969-02-25Procedure for obtaining glucosid derivatives. (Machine-translation by Google Translate, not legally binding)
ExpiredES364043A1
(en)