1. Zastrzezenie patentowe. Sposób wytwarzania pochodnych izo- alloksazyny, znamienny tern, ze pochodne o-fenylenodwuaminy, zawiera j ace przy jednej z grup aminowych boczny lancuch alifatyczny z grupa hydroksylowa, konden- suje sie z alloksanem lub pochodnemi al- kylowemi alloksanu. F. Hoffmann-La Roche & Co. A k t i e n g e s e 11 s c h a f t. Zastepca: Inz. Cz. Raczynski, rzecznik patentowy. Druk L. Boguslawskiego i Ski, Warszawa, PL1. Patent claim. A process for the preparation of isoalloxazine derivatives, characterized by the o-phenylenediamine derivatives containing an aliphatic side chain with a hydroxyl group at one of the amino groups, is condensed with alloxane or an alkyl derivative of alloxan. F. Hoffmann-La Roche & Co. A k t i e n g e s e 11 s c h a f t. Deputy: Inz. Th. Raczynski, patent attorney. Print by L. Boguslawski and Ski, Warsaw, PL
PL23126A1935-07-24
Process for the production of isoalloxazine derivatives.
PL23126B1
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Process for the preparation of readily soluble double compounds of theophylline or caffeine with 1-phenyl-2-aminopropane or its derivatives having an ephedrine-like effect.
Process for increasing the stability to light of artificial silk, artificial threadsor other artificial objects of regenerated cellulose or unplastified cellulose derivatives