Two new alkaloids from Melodinus hemsleyanus Diels
2016
Two new monoterpenoid indole alkaloids, named 14,15-dihydro-14β,15β-epoxy-10-hydroxyscandine (1) and 15α-hydroxy-meloscandonine (2), together with 12 known compounds, were isolated from the aerial parts of Melodinus hemsleyanus Diels. The structures of 1 and 2 were elucidated on the bases of 1D and 2D NMR spectra and MS. Two new compounds were evaluated for their PTP1B and Drak2 inhibitory effects, and inactivity.
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