Eleven indole alkaloids, namely, voacangine, voacristine, isovoacristine, coronaridine,
isovoacangine, vobasine, voacangine, tabernaemontanine, 19-epivoacangine, a new …

The stereochemistry of tubotaiwine has been reinvestigated by nOe-meas-urements, 13C-H
coupling constants, and protonation shifts. It was proved that C-20 of tubotaiwine has the S …

Fifteen isoquinolone alkaloids are presently known. They may be found either in the fully
aromatic form A, or else in the partially reduced form B. The numbering system is as …

Two tetrahydroquinoline alkaloids have been isolated from the bark of Galipea officinalis
Hancock. Their structures have been established by spectroscopic methods. The …

Two new dihydroindole alkaloids were isolated from Rauwolfia vomitoria Afz. One of them
proved to be sandwicine, previously isolated from Rauwolfia sandwicensis. The structure of …

From the bark of Evodia belahe Baillon (Rutaceae), three already known furoquinoline
alkaloids have been isolated and identified: dictamnine (1) évolitrine (2), kokusaginine (3); …

Publisher Summary This chapter describes introduction and nomenclature, occurrence,
structure and synthesis, biosynthesis, and pharmacological properties of …

The root bark and the stem bark of Berberis vulgaris L.(16.2 and 6.0 wt.% of total alkaloids)
yielded berberine (IIa), magnoflorine (I) and jatrorrhizine (IIc) as major quaternary alkaloids …

A new dimeric indole alkaloid which was named pseudovobparicine 1, was isolated from the
rootbark of Tabernaemontana divaricata (Apocynaceae). Its structure was elucidated by …

In our continuing work on Egyptian Salvia species (1—4), we describe here the isolation of
five diterpene quinones from the roots of S. verbenaca L. and S. lanigera Poir. In an earlier …