Journal
PHYTOCHEMISTRY LETTERS
Volume 53, Issue -, Pages 175-178Publisher
ELSEVIER
DOI: 10.1016/j.phytol.2022.12.007
Keywords
Mycetia effuse; Myrioneuron effusum; Rubiaceae; Myrioneuron alkaloids
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Four new Myrioneuron alkaloids, mysumamines A-D (1-4), and six known compounds (5-10) were isolated from the aerial parts of Mycetia effusa (syn. Myrioneuron effusum, Rubiaceae). Compounds 1-3 are undescribed tricyclic Myrioneuron alkaloids, while compound 4 is a new hexacyclic Myrioneuron alkaloid. The structures of these new compounds were determined by MS, 1D and 2D NMR spectral analysis.
Four new Myrioneuron alkaloids, named mysumamines A-D (1-4), together with six known compounds (5-10), were isolated from the aerial parts of Mycetia effusa (syn. Myrioneuron effusum (Rubiaceae)). Among these natural products, compounds 1-3 are undescribed tricyclic Myrioneuron alkaloids and compound 4 is a new hexacyclic Myrioneuron alkaloid. The structures of these new compounds were elucidated by MS, 1D-and 2D NMR spectral analysis.
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