Labdane diterpenes from Stachys plumosa.
Three new labdane diterpenoids were isolated from the aerial parts of Stachys plumosa. The first two (1, 2) were the dextrorotatory enantiomers of the known 6-deoxyandalusol and 13-epijabugodiol. Structures were determined using NMR and MS techniques. The absolute stereochemistry of the third compound (3) was not experimentally proved.
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Dipartimento Chimica Organica, Università di Palermo, Viale delle Scienze, 90128 Palermo, Italy.
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D002849:Chromatography, Gas; D002850:Chromatography, Gel; D004224:Diterpenes / Q000737:chemistry / Q000302:isolation & purification*; D008401:Gas Chromatography-Mass Spectrometry; D007558:Italy; D019686:Lamiaceae / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D009904:Optical Rotation; D018515:Plant Leaves / Q000737:chemistry; D018547:Plant Stems / Q000737:chemistry; D013056:Spectrophotometry, Ultraviolet
C414704:(15-acetoxy-labd-13-ene-8alpha,18-diol)plumosol; C414702:(16,18-dihydroxy-13-epimanoyl-oxide)-13-epijabugodiol; C414703:(8alpha,18-dihydroxy-lambda-13(16),14-diene)-6-deoxyandalusol; D004224:Diterpenes