title: Triterpenes from natural and transformed roots of Plocama pendula.
abstract: Plocama pendula root cultures transformed by Agrobacterium rhizogenes were established. From these cultures two new pentacyclic triterpenes, 3-epi-pomolic acid 3alpha-acetate (3alpha-acetoxy-19alpha-hydroxyursa-12-en-28-oic acid) (1) and baloic acid (3alpha-acetoxy-19alpha-hydroxyursa-12,20(30)-dien-28-oic acid) (9), were isolated. The former was also obtained from P. pendula natural roots, together with another two new pentacyclic triterpenes, 3-epi-pomolic acid (3alpha,19alpha-dihydroxyursa-12-en-28-oic acid) (3) and 19alpha-hydroxyoleanonic acid (19alpha-hydroxy-3-oxo-olean-12-en-28-oic acid) (12).
authors.affiliation: Instituto de Productos Naturales y Agrobiología, CSIC, Avenida Astrofísico F. Sanchez 3, 38206 La Laguna, Tenerife, Spain. bmfraga@ipna.csic.es
authors.forename: Braulio M
authors.initials: BM
authors.lastname: Fraga
authors.forename: Carmen E
authors.initials: CE
authors.lastname: Díaz
authors.forename: Nayra
authors.initials: N
authors.lastname: Quintana
mesh_terms: D018517:Plant Roots / Q000737:chemistry / Q000166:cytology / Q000187:drug effects / Q000502:physiology; D010946:Plants, Medicinal / Q000737:chemistry*; D019666:Rubiaceae / Q000737:chemistry*; D013030:Spain; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: D014315:Triterpenes