. 2009 Dec 1;14(12):4936–4972. doi: 10.3390/molecules14124936
© 2009 by the authors;
licensee Molecular Diversity Preservation International, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).
Scheme 42.
MMS of piperazinedione-fused tricyclic compounds.