Labdane diterpenes from Leonurus japonicus leaves.
Three labdane diterpenes 15,16-epoxy-6-hydroxylabda-5,8,13(16),14-tretraen-7-one (leojaponin), (9alpha,13S);15,16-diepoxy-7beta-hydroxylabd-14-en-6-one (13-epi-preleoheterin), and (9alpha,13R);15,16-diepoxy-6beta-hydroxylabd-14-en-7-one (iso-preleoheterin) were isolated from the leaves of Leonurus japonicus, in addition to the previously reported preleoheterin. The structure elucidations were made based on analysis of their spectroscopic data.
Romero-González
Román R
RR
Grupo de Química Ecológica, Departamento de Química, Facultad de Ciencias, Universidad de Los Andes, Mérida 5101, Venezuela.
Avila-Núñez
Jorge L
JL
Aubert
Lianne
L
Alonso-Amelot
Miguel E
ME
D004224:Diterpenes / Q000737:chemistry* / Q000302:isolation & purification; D031332:Leonurus / Q000737:chemistry*; D008968:Molecular Conformation; D010936:Plant Extracts / Q000737:chemistry; D018515:Plant Leaves / Q000737:chemistry
C512947:13-epi-preleoheterin; D004224:Diterpenes; D010936:Plant Extracts; C512946:leojaponin