Enantioselective Synthesis of a Highly Substituted Tetrahydrofluorene Derivative as a Potent and Selective Estrogen Receptor Beta Agonist
Autor: | Melissa E. Howard, Andrew W. Gibson, Alejandro Dieguez-Vazquez, Debra J. Wallace, Artis Klapars, Robert D. Wilson, Jeremy P. Scott, Peter R. Mullens, Andrew D. Gibb, Carl A. Baxter, Jaemoon Lee, Sarah E. Brewer, Stephen P. Keen, Ed Cleator, Nadine Bremeyer, Anthony Alorati, Kevin R. Campos, Matthew L. Maddess, Joseph J. Lynch, Jing Li |
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Rok vydání: | 2014 |
Předmět: | |
Zdroj: | Organic Process Research & Development. 18:528-538 |
ISSN: | 1520-586X 1083-6160 |
Popis: | The development and execution of a practical asymmetric synthesis of the estrogen receptor beta selective agonist (8R,10aS)-6-(trifluoromethyl)-8,9,10,11-tetrahydro-8,10a-methanocyclohepta[1,2]indeno[4,5-d][1,2,3]triazol-7(3H)-one is described. The optimized route features a key chiral auxiliary-mediated dialkylation approach to set the all-carbon quaternary center with exceptional stereocontrol. Overall, the chemistry has been used to prepare >30 kg of drug candidate in 21% overall yield through 13 longest linear steps and with >99% ee. |
Databáze: | OpenAIRE |
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