A New bis-Labdane and Other Secondary Metabolites from Turraeanthus mannii

  title={A New bis-Labdane and Other Secondary Metabolites from Turraeanthus mannii},
  author={Val{\'e}rie Tedjon Sielinou and Juliette Cath{\'e}rine Vardamides and M. Shaiq Ali and Zeeshan Ahmed and Abdul Hameed and Augustin Ephrem Nkengfack},
  journal={Chemistry of Natural Compounds},
From the dichloromethane–methanol (1:1) extract of the seeds of Turraeanthus mannii (Meliaceae), a new bis-labdane diterpenoid, namely (–)-15′,16′-dihydroxy-15(12′),15′(16′)-diolide-bislabda-8(17),8′(17′),12-trien-16-al, trivially named ent-turrealabdane (1), has been isolated together with six already known secondary metabolites: scopoletin, isoscopoletin, 6-hydroxy-7,8-dimethoxycoumarin, 3-methylhydantoin, β-sitosterol, and β-sitosterol 3-O-β-D-glucopyranoside. Esterification of ent… 
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