title: Clerodane diterpenes from Tinospora rumphii.
abstract: Two new diterpenes (1 and 2) were obtained from the leaves of Tinospora rumphii, along with the known compounds tinotufolin D and vitexilactone. The structures of compounds 1 and 2 were established on the basis of spectroscopic studies.
authors.affiliation: Chemistry Department, De La Salle University, Manila, Philippines. coscyr.cos.dlsu-manila@mail.dlsu.edu.ph
authors.forename: C Y
authors.initials: CY
authors.lastname: Ragasa
authors.forename: M C
authors.initials: MC
authors.lastname: Cruz
authors.forename: R
authors.initials: R
authors.lastname: Gula
authors.forename: J A
authors.initials: JA
authors.lastname: Rideout
mesh_terms: D015107:4-Butyrolactone / Q000031:analogs & derivatives* / Q000737:chemistry / Q000302:isolation & purification; D004224:Diterpenes / Q000302:isolation & purification*; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D010679:Philippines; D010936:Plant Extracts / Q000032:analysis; D010946:Plants, Medicinal / Q000737:chemistry*; D013055:Spectrophotometry, Infrared; D013056:Spectrophotometry, Ultraviolet
chemical_list: D004224:Diterpenes; D010936:Plant Extracts; D015107:4-Butyrolactone