PREPARATION OF ASYMMETRIC CYCLIC UREAS THROUGH A MONOACYLATED DIAMINE INTERMEDIATE

The present invention concerns an improved process for the preparation of asymmetric cyclic ureas as well as intermediates in the preparation of asymmetric cyclic ureas. In the process, a diamine of formula (I-a) is selectively monoacylated to give an asymmetric monoacylated diamine which can be con...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	ANZALONE, LUIGI, VALVIS, IOANNIS, I, STONE, BENJAMIN, R., P, WALTERMIRE, ROBERT, E, HARRIS, GREGORY, D, FORTUNAK, JOSEPH, M
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	CHEMISTRY HETEROCYCLIC COMPOUNDS METALLURGY ORGANIC CHEMISTRY
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