Preparation of thyroxine products
First Claim
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1. IN THE PROCESS FOR THE PRODUCTION OF AN N-ACYLTHYROXINE FROM AN N-ACYLDIIODOTYROSINE WHEREIN THE NACYLDIIODOTYROSINE IS INCUBATED IN AN ALKALINE AQUEOUS SOLUTION AT A PH AND TEMPERATURE FAVORING CONVERSION OF THE N-ACYLDIIODOTYROSINE TO N-ACYLTHYROXINE, THE IMPROVEMENT COMPRISING CARRYING OUT SAID INCUBATION FOR A PERIOD OF FROM ABOUT 24 TO 150 HOURS IN THE PRESENCE OF FROM ABOUT 1 TO 20% BY WEIGHT BASED ON THE WEIGHT OF THE N-ACYLDIIODOTYROSINE, OF A MANGANESE-CONTAINING CATALYST FOR SAID CONVERSION AND PASSING SUBSTANTIALLY PURE OXYGEN THROUGH SAID AQUEOUS SOLUTION DURING SAID CONVERSION.
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1 Claim
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1. IN THE PROCESS FOR THE PRODUCTION OF AN N-ACYLTHYROXINE FROM AN N-ACYLDIIODOTYROSINE WHEREIN THE NACYLDIIODOTYROSINE IS INCUBATED IN AN ALKALINE AQUEOUS SOLUTION AT A PH AND TEMPERATURE FAVORING CONVERSION OF THE N-ACYLDIIODOTYROSINE TO N-ACYLTHYROXINE, THE IMPROVEMENT COMPRISING CARRYING OUT SAID INCUBATION FOR A PERIOD OF FROM ABOUT 24 TO 150 HOURS IN THE PRESENCE OF FROM ABOUT 1 TO 20% BY WEIGHT BASED ON THE WEIGHT OF THE N-ACYLDIIODOTYROSINE, OF A MANGANESE-CONTAINING CATALYST FOR SAID CONVERSION AND PASSING SUBSTANTIALLY PURE OXYGEN THROUGH SAID AQUEOUS SOLUTION DURING SAID CONVERSION.
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Current AssigneeDaniel R. Borgen, Leonard G. Ginger, Paul Z. Anthony
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Original AssigneeDaniel R. Borgen, Leonard G. Ginger, Paul Z. Anthony
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InventorsAnthony, Paul Z., Borgen, Daniel R., Ginger, Leonard G.
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Application NumberUS03/517,794Time in Patent Office788 DaysField of SearchUS Class Current562/447CPC Class CodesC07C 227/16 by reactions not involving ...C07C 319/20 by reactions not involving ...
