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2142683179
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Provided in Supporting Information
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Provided in Supporting Information.
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18
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2142790666
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note
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Crystallographic data for compounds have been deposited with the Cambridge Crystallographic Data Centre as supplementary publication nos. 190127-190133. These data can be obtained free of charge via www.c-cdc.cam.ac.uk/conts/retrieving.html (or from the CCDC, 12 Union Road, Cambridge CB2 1EZ, U.K.; fax: +44 1223 336033; e-mail: deposit@ ccdc@cam.ac.uk)
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1,3 strain in the equatorially lithiated intermediate, resulting in 93 being more reactive toward equatorial lithiation.
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The erosion of the enantiomeric ratio of ent-17 may indicate the transmetalation of 114 and 115 is not completely stereoselective.
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32
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