title: On the active agents of Valerian.
abstract: (13)C-NMR shifts of valepotriathydrines show a characteristic dependence on type and position of the acyloxy substituents. The structures of well known and of new valepotriathydrines have been clarified.
authors.affiliation: Kali-Chemie AG, Sparte Pharma, D-3000 Hannover.
authors.forename: E
authors.initials: E
authors.lastname: Finner
authors.forename: S
authors.initials: S
authors.lastname: David
authors.forename: P W
authors.initials: PW
authors.lastname: Thies