title: seco-Hinokiol, a new abietane diterpenoid from Rosmarinus officinalis.
abstract: seco-Hinokiol (1), a new abietane diterpenoid, has been isolated from the leaves of Rosmarinus officinalis. Its structure was elucidated on the basis of extensive spectroscopic analysis. To our knowledge, this is the fourth report of a seco-abietane having been isolated. In addition, methyl carnosate (4) was synthesized from carnosic acid (3), and detailed NMR spectroscopic data are provided to clarify previous literature reports.
authors.affiliation: Hauser Inc., Longmont, Colorado 80504, USA. ccantrell@msa-oxford.ars.usda.gov
authors.forename: Charles L
authors.initials: CL
authors.lastname: Cantrell
authors.forename: Steven L
authors.initials: SL
authors.lastname: Richheimer
authors.forename: Gillian M
authors.initials: GM
authors.lastname: Nicholas
authors.forename: Brad K
authors.initials: BK
authors.lastname: Schmidt
authors.forename: David T
authors.initials: DT
authors.lastname: Bailey
mesh_terms: D045784:Abietanes / Q000737:chemistry / Q000302:isolation & purification*; D019083:Mediterranean Region; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D010936:Plant Extracts / Q000737:chemistry; D018515:Plant Leaves / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D027542:Rosmarinus / Q000737:chemistry*
chemical_list: D045784:Abietanes; D010936:Plant Extracts; C497963:seco-Hinokiol; C018381:salvin