Structure of feruloylhistamine, a hypotensive principle of Ephedra roots.
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.
Hikino
H
H
Pharmaceutical Institute, Tohoku University, Sendai, Japan.
Ogata
M
M
Konno
C
C