title: Sipeimine, a steroidal alkaloid from Fritillaria roylei Hooker.
authors.affiliation: Department of Chemistry and Institute of Chinese Medicine, The Chinese University of Hong Kong, Hong Kong, People's Republic of China.
authors.forename: R W
authors.initials: RW
authors.lastname: Jiang
authors.forename: S S
authors.initials: SS
authors.lastname: Ma
authors.forename: P P
authors.initials: PP
authors.lastname: But
authors.forename: H
authors.initials: H
authors.lastname: Dong
authors.forename: T C
authors.initials: TC
authors.lastname: Mak