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Chemical structures of the phytocannabinoids, (A) 11-hydroxy-Δ9-tetrahydrocannabinolic acid A (23), (B) (±)-6,7-cis/trans-epoxycannabigerolic acid (24), (C) 8-keto-Δ9-tetrahydrocannabinolic acid A (25), (D) 8β,11-bis-hydroxy-Δ9-tetrahydrocannabinolic acid (26), (E) (−)-7R-cannabicourmaronic acid (27), and (F) cannabifuran.
