title: Structure of feruloylhistamine, a hypotensive principle of Ephedra roots.
abstract: From the crude drug "maō-kon", the underground part of Ephedra plant, we have isolated a new hypotensive imidazole alkaloid feruloylhistamine the structure of which has been determined as shown in formula I based on chemical and physical evidence.
authors.affiliation: Pharmaceutical Institute, Tohoku University, Sendai, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Hikino
authors.forename: M
authors.initials: M
authors.lastname: Ogata
authors.forename: C
authors.initials: C
authors.lastname: Konno