title: Pyrrolizidine alkaloids from Heliotropium rotundifolium.
abstract: Heliotropium rotundifolium was shown to contain, in addition to the previously isolated europine [1], three other alkaloids: heliotrine [2], lasiocarpine [3], and a new alkaloid identified as 5'-acetyleuropine [4]. The alkaloids were isolated by dccc and the structures established by spectroscopic means (1H and 1H- 13CHETCOR nmr and ms), physical properties (melting points and/or optical rotations), comparison with authentic samples, or by semi-synthesis.
authors: School of Chemistry, Georgia Institute of Technology, Atlanta 30332.
authors: C F
authors: CF
authors: Asibal
authors: L T
authors: LT
authors: Gelbaum
authors: L H
authors: LH
authors: Zalkow
mesh_terms: D055598:Chemical Phenomena; D002621:Chemistry; D008401:Gas Chromatography-Mass Spectrometry; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D010946:Plants, Medicinal / Q000032:analysis*; D011763:Pyrrolizidine Alkaloids / Q000302:isolation & purification* / Q000494:pharmacology
chemical_list: D011763:Pyrrolizidine Alkaloids