New pyrrolizidine alkaloids from Heliotropium crassifolium.
Heliotropium crassifolium Boiss, (Boraginaceae) from a population of Ilam, western region of Iran was studied for pyrrolizidine alklaoids (PAs). Four alkaloids have been identified: europine 1, europine N-oxide 2 and a new pyrrolizidine alkaloids ilamine 3 and its N-oxide 4, respectively. Their structures were elucidated by IR, 1H-NMR and EIMS data.
Farsam
H
H
Yassa
N
N
Sarkhail
P
P
Shafiee
A
A
D010944:Plants / Q000737:chemistry*; D011763:Pyrrolizidine Alkaloids / Q000737:chemistry / Q000302:isolation & purification*; D013057:Spectrum Analysis
D011763:Pyrrolizidine Alkaloids