title: Spirostanic analogues of castasterone.
abstract: The synthesis, spectroscopic characterization, and biologic activity of two bioactive spirostanic analogues of the naturally occurring brassinosteroid castasterone are described.
authors.affiliation: Laboratorio de Productos Naturales, Facultad de Química, Universidad de La Habana, La Habana 10 400, Cuba. iglesias@fq.uh.cu
authors.forename: Martín A
authors.initials: MA
authors.lastname: Iglesias-Arteaga
authors.forename: Carlos
authors.initials: C
authors.lastname: Pérez Martínez
authors.forename: Francisco
authors.initials: F
authors.lastname: Coll Manchado
mesh_terms: D001894:Borohydrides / Q000737:chemistry; D019607:Brassicaceae / Q000187:drug effects / Q000254:growth & development; D002777:Cholestanols / Q000737:chemistry*; D002855:Chromatography, Thin Layer; D018525:Germination / Q000187:drug effects; D009682:Magnetic Resonance Spectroscopy; D010084:Oxidation-Reduction; D010937:Plant Growth Regulators / Q000138:chemical synthesis* / Q000494:pharmacology; D012639:Seeds / Q000187:drug effects / Q000254:growth & development; D017550:Spectroscopy, Fourier Transform Infrared; D013150:Spirostans / Q000138:chemical synthesis / Q000494:pharmacology
chemical_list: C455833:2,3,23-trihydroxy-5-spirostan-6-one; C455832:2,3-dihydroxy-5-spirostan-6,23-dione; D001894:Borohydrides; D002777:Cholestanols; D010937:Plant Growth Regulators; D013150:Spirostans; C083545:castasterone; C025364:sodium borohydride