The synthesis of novel heteroaryl-fused 7,8,9,10-tetrahydro-6H-azepino[1,2-a]indoles, 4-oxo-2,3-dihydro-1H-[1,4]diazepino[1,7-a]indoles and 1,2,4,5-tetrahydro-[1,4]oxazepino[4,5-a]indoles. Effective inhibitors of HCV NS5B polymerase |
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Authors: | Ding Min He Feng Poss Michael A Rigat Karen L Wang Ying-Kai Roberts Susan B Qiu Dike Fridell Robert A Gao Min Gentles Robert G |
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Affiliation: | Discovery Chemistry, Research and Development, Bristol-Myers Squibb Co., 5 Research Parkway, Wallingford, CT 06492, USA. min.ding@bms.com |
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Abstract: | Three synthetic approaches have been developed that allow efficient access to novel heteroaryl fused indole ring systems, including: 7,8,9,10-tetrahydro-6H-azepino[1,2-a]indoles, 4-oxo-2,3-dihydro-1H-[1,4]diazepino[1,7-a]indoles and 1,2,4,5-tetrahydro-[1,4]oxazepino[4,5-a]indoles. Each strategy is fully exemplified and the relative merits and limitations of the approaches are discussed. The hepatitis C virus (HCV) non-structural 5B (NS5B) polymerase inhibitory activities of select examples from each molecular class are briefly presented. |
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