Journal of Natural Products · 2003 · 44 citations · 6 references
Medicinal ChemistryBioorganic ChemistryHeterocyclicBiochemistryNatural SciencesMedicineSecondary MetaboliteStemona CurtisiiOrganic ChemistryB-ring SystemHeterocycle ChemistryPharmacologyPharmaceutical ChemistryRelative StereochemistryDrug DiscoveryNatural Product Synthesis
A new pentacyclic stemona alkaloid, stemocurtisine (2), with a novel pyrido[1,2-a]azapine A,B-ring system, has been isolated from a root extract of Stemona curtisii. The structure and relative stereochemistry was determined by spectral data interpretation and X-ray crystallography.
6
An Integrated System of Classification of Flowering Plants
Rudolf Schmid, Arthur Cronquist · Taxon · 1995 · 3.3K citations
Biology, Phylogenetics, Botany +7