Send to

Choose Destination
See comment in PubMed Commons below
Life Sci. 1995;56(23-24):2007-12.

Classical/non-classical cannabinoid hybrids; stereochemical requirements for the southern hydroxyalkyl chain.

Author information

  • 1Department of Chemistry, University of Hawaii, Honolulu 96822, USA.


We have synthesized a range of hybrid classical/non-classical cannabinoids (CC/NCCs) combining the hexahydrocannabinol dibenzopyran structure with the hydroxyalkyl chain found in CP-55940, in order to investigate the role of the hydroxyalkyl pharmacophore in cannabimimetic activity. This was achieved by synthesizing CC analogs in which the 6 alpha- and 6 beta-methyl groups were modified to the corresponding hydroxyethyl groups. Our binding data indicated that beta position was the preferred orientation for the hydroxyalkyl moiety, affinity for the CB1 receptor being 20-fold greater for the 6 beta-hydroxyethyl than the corresponding 6 alpha-analog. Further studies using 6 beta-hydroxyalkyldibenzopyran analogs varying the southern aliphatic chain length from 6 beta-hydroxymethyl to 6 beta-hydroxyethyl to 6 beta-hydroxypropyl demonstrated little potency change with chain length. Therefore, we concluded that whilst the hydroxyalkyl pharmacophore was strongly affected by its configuration relative to the dibenzopyran ring, the chain length of the hydroxyalkyl moiety (up to the n = 3 homolog) was not critical.

[PubMed - indexed for MEDLINE]
PubMed Commons home

PubMed Commons

How to join PubMed Commons

    Supplemental Content

    Loading ...
    Support Center