Two homologous series of racemic diastereomeric cis- and trans-(2-dimethylaminomethylcycloheptyl)-2-alkoxyphenylcarbamates with alkyl chain lengths ranging from C₁ to C₈ were synthesized by stereoselective reactions. The chemical structures of these compounds were confirmed by ¹H-NMR, ¹³C-NMR and IR spectroscopy and their physico-chemical properties were characterized. The two new series of diastereomeric compounds were tested for their local anesthetic activity and parabolic relationship between the local anesthetic activity and lipophilicity was found for both cis- and trans-series. Interestingly, cis-stereoisomers exhibited higher local anesthetic activity.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3845385 | PMC |
| http://dx.doi.org/10.1248/cpb.59.978 | DOI Listing |
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