title: Iridoids from Penstemon richardsonii.
abstract: From the leaves of PENSTEMON RICHARDSONII Dougl., four valeriana-type ester iridoids have been isolated and structurally elucidated as serrulatoloside, 10-deoxypatrinoside, serrulatoloside-aglycone, and 10-deoxypatrinoside-aglycone.
authors.affiliation: Institut für Pharmazeutische Biologie der Philipps-Universität Marburg, Deutschhausstrasse, Marburg, Federal Republic of Germany.
authors.forename: B
authors.initials: B
authors.lastname: Gering-Ward
authors.forename: M
authors.initials: M
authors.lastname: Wichtl