[Determination of structures by H NMR at 400 MHz: albifloranine, a new alkaloid from Tabernaemontana albiflora].
The structure of albifloranine 1, a new alkaloid of ibogane type from the stem bark of Tabernaemontana albiflora (M IQ.) Pull. (Apocynaceae) has been determined. A detailed (1)H NMR study of albifloranine 1, coronaridine 2 and heyneanine 3 is presented.
Kan
C
C
Institut de Chimie des Substances Naturelles du C.N.R.S., Gif-Sur-Yvette, France.
Husson
H P
HP
Kan
S K
SK
Lounasmaa
M
M