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Revista Colombiana de Ciencias Químico - Farmacéuticas
Print version ISSN 0034-7418On-line version ISSN 1909-6356
Abstract
GRIJO, Daniel Ribeiro; OLIVO, José Eduardo and LIMA, Oswaldo Curty da Motta. Enantiomeric characteristics of non-synthetic cannabidiol by two-dimensional nuclear magnetic resonance. Rev. colomb. cienc. quim. farm. [online]. 2022, vol.51, n.2, pp.723-734. Epub Dec 19, 2023. ISSN 0034-7418. https://doi.org/10.15446/rcciquifa.v51n2.97794.
Introduction:
Cannabidiol (CBD) has become a promising bioactive for the next decades after the recent recognition of the medical potential of Cannabis derivatives by United Nations member countries, as it has no psychotropic potential as your isomer A9-tetrahydrocannabinol (Δ9-THC). The differentiation of these isomers has been studied for decades. Recent studies demonstrate that even with more subtle chemical characteristics, such as those of the CBD enantiomers, there are considerable bioactive differences. However, there are still not many studies on their chemical structures.
Aim:
This work aims to present experimental data obtained by Nuclear Magnetic Resonance (NMR) to better elucidate the three-dimensional structure of this enantiomeric bioactive.
Materials and methods:
For this, a sample of non-synthetic high purity CBD was subjected to different one-dimensional (1D-NMR) and two-dimensional (2D-NMR) analyses related to the hydrogen (1H) and carbon (13C) nuclei.
Results and discussion:
The 1D-NMR techniques used are sufficient to distinguish the CBD and Δ 9-THC isomers, but not to identify the enantiomeric characteristics of the non-synthetic CBD.
Conclusions:
It is concluded that the two-dimensional homonuclear (1H,1H) and heteronuclear (1H,13C) techniques analyzed are suitable to help distinguish CBD enantiomers.
Keywords : CBD; cannabinoids; enantiomers; 2D-NMR; three-dimensional structure.