Perhydro-1,3-diazepine-2,4-diones by cyclization of 4-ureidobutyric acids with thionyl chloride: A reinvestigation
作者:Roland Heckendorn、Tammo Winkler
DOI:10.1002/jhet.5570370118
日期:2000.1
The structures of the previously reported aryl-perhydro-1,3-diazepine-2,4-diones are shown to be pyrro-lidinone carboxamide derivatives by nmr spectroscopy.