Phytochemistry p. 291 - 294 (1995)
Update date:2022-08-17
Topics:
Lakshmanan, Akoni J.
Shanmugasundaram, Singaram
Isolation and structure determination of the two new ester alkaloids of Heliotropium bracteatum, viz. helibracteatinine and helibracteatine, are described.Helibracteatinine was formulated as 1β-hydroxymethyl-7α-angelyloxy-8α-pyrrolizidine-1α-ol and helibracteatine as 1β-angelyloxy-8α-pyrrolizidine-1α,7α-diol.Structures were established by spectrometry of the alkaloids and by hydrolysis to their necine bases.
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