Author(s): Asibal CF, Gelbaum LT, Zalkov LH
Heliotropium rotundifolium was shown to contain, in addition to the previously isolated europine , three other alkaloids: heliotrine , lasiocarpine , and a new alkaloid identified as 5'-acetyleuropine . 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.
Referred From: https://pubmed.ncbi.nlm.nih.gov/2809605/
Author(s): Okusa PN, Beuerle T, Stévigny C, Due P
Author(s): Frolich C, Hartmann T, Ober D
Author(s): Joosten L, Mulder PPJ, Vrieling K, van Veen JA, Klinkhamer PGL
Author(s): Xu W, Chu K, Zhang Y, Huang M, Sha M, Chen L