Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitlePerhydro-1,3-diazepine-2,4-diones by cyclization of 4-ureidobutyric acids with thionyl chloride: A reinvestigation.AuthorsHeckendorn, Roland; Winkler, TammoPublicationJournal of Heterocyclic Chemistry, 2000, Vol 37, Issue 1, p111ISSN0022-152XPublication typeArticleDOI10.1002/jhet.5570370118