Process for the production of DTPA-BIS anhydride

Process for the production of DTPA-bis(anhydride) by reacting DTPA with acetic anhydride in pyridine under elevated temperature wherein the molar amount of pyridine is equal to or less than 6 times the molar amount of DTPA.

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Hauptverfasser:	ANDERSEN ELI R, OLAISEN VIDAR, HOLMAAS LARS T
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY HETEROCYCLIC COMPOUNDS METALLURGY ORGANIC CHEMISTRY
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creator	ANDERSEN ELI R OLAISEN VIDAR HOLMAAS LARS T
description	Process for the production of DTPA-bis(anhydride) by reacting DTPA with acetic anhydride in pyridine under elevated temperature wherein the molar amount of pyridine is equal to or less than 6 times the molar amount of DTPA.
format	Patent
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subjects	CHEMISTRY HETEROCYCLIC COMPOUNDS METALLURGY ORGANIC CHEMISTRY
title	Process for the production of DTPA-BIS anhydride
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