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Abstract

Biotransformation of cannabidiol in mice. Identification of new acid metabolites.

B R Martin, D J Harvey and W D Paton
Drug Metabolism and Disposition May 1977, 5 (3) 259-267;
B R Martin
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D J Harvey
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W D Paton
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Abstract

The in vivo metabolism of cannabidiol (CBD) was investigated in mice. Following the ip administration of CBD to mice, livers were removed and metabolites were extracted with ethyl acetate prior to partial purification on Sephadex LH-20 columns. Fractions from the columns were converted into trimethylsilyl, d9-trimethylsilyl, and methylester-trimethylsilyl derivatives for analysis by gas-liquid chromatography-mass spectrometry. In addition, metabolites containing carboxylic acid and ketone functional groups were reduced to alcohols with lithium aluminum deuteride before trimethylsilation. A total of 22 metabolites were characterized, 14 of which had not been reported previously. The metabolites could be categorized as follows: monohydroxylated (N=2), dihydroxylated (N=3), CBD-7-oic acid, side chain hydroxy-GBD-7-oic acids (N=3), side-chain acids (N=3), 7-hydroxy-side-chain acids (N=4), 6-oxo-side-chain acids (N=3) and glucuronide conjugates (N=3). The most significant biotransformations were glucuronide conjugation and, to a lesser extent, formation of CBD-7-oic acid.

 

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Drug Metabolism and Disposition
Vol. 5, Issue 3
1 May 1977
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Abstract

Biotransformation of cannabidiol in mice. Identification of new acid metabolites.

B R Martin, D J Harvey and W D Paton
Drug Metabolism and Disposition May 1, 1977, 5 (3) 259-267;

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Abstract

Biotransformation of cannabidiol in mice. Identification of new acid metabolites.

B R Martin, D J Harvey and W D Paton
Drug Metabolism and Disposition May 1, 1977, 5 (3) 259-267;
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