| Literature DB >> 22923851 |
Steven Gunawan1, Muhammad Ayaz, Fabio De Moliner, Brendan Frett, Christine Kaiser, Nina Patrick, Zhigang Xu, Christopher Hulme.
Abstract
A two-step strategy for the synthesis of arrays of tricyclic tetrazolo-fused benzodiazepines and benzodiazepinones has been investigated. The protocol uses ortho-N-Boc phenylisocyanides and phenylglyoxaldehydes or ethyl glyoxylate in the 4-component Ugi-Azide reaction to afford MCR (Multi Component Reactions) derived adducts equipped with the desired diversity inputs. A subsequent acidic treatment (TFA/DCE) allows a simultaneous deprotection-cyclization leading to the final products.Entities:
Year: 2012 PMID: 22923851 PMCID: PMC3423981 DOI: 10.1016/j.tet.2012.04.068
Source DB: PubMed Journal: Tetrahedron ISSN: 0040-4020 Impact factor: 2.457