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31
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84920294310
-
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note
-
The coupling constant of 7 Hz for the C-3 methine proton appearing as a doublet at 5.11 ppm is indicative of an axial carbomethoxy group at this position, assuming a chair conformation for the piperidine ring. The protons for C-l appearing at 2.51 (dd, J=19 and 6Hz) and 1.92 (dd, J=19 and 2Hz) support an axial bridgehead proton at C-7a.
-
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-
32
-
-
84920294309
-
-
note
-
The authors have deposited the atomic coordinates for 6, 10, and 36 with the Cambridge Crystallographic Data Centre. Additional experimental details are provided as supplementary material.
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33845278094
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42
-
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84920294308
-
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note
-
The protons at C-1 appearing at 3.76 (d, J=13Hz) and 3.48 (dd, J=13 and 3Hz) are indicative of an equatorial proton at C-7a, assuming a chair conformation for the piperidine ring.
-
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43
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0000844109
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84955066834
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