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Synthesis of an azide-tagged library of 2,3-dihydro-4-quinolones
Hajoong Lee1, Masato Suzuki, Jiayue Cui
1Department of Chemistry, University of Chicago, 5735 S. Ellis Ave., Chicago, Illinois 60637, USA.
Abstract:
We describe the assembly of a 960-member library of tricyclic 2,3-dihydro-4-quinolones using a combination of solution-phase high-throughput organic synthesis and parallel chromatographic purification. The library was produced with high efficiency and complete chemo- and diastereoselectivity by diversification of an azide-bearing quinolone via a sequence of [4 + 2] cycloadditions, N-acylations, and reductive aminations. The azide-functionalization of this library is designed to facilitate subsequent preparation of fluorescent or affinity probes, as well as small-molecule/surface conjugation.
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