✍ Scribed by Wei Hua Yuan; Min Liu; Nan Jiang; Zhi Kai Guo; Jing Ma; Jie Zhang; Yong Chun Song; Ren Xiang Tan
No coin nor oath required. For personal study only.
Guignardones A (1), B (2), and C (3), which are three meroterpenes with frameworks most probably generated through a terpenoid shikimate pathway, were characterized by a combination of spectroscopic, X‐ray crystallographic, and computational methods. The compounds were obtained from cultures of Guignardia mangiferae IFB‐GLP‐4 associated with normal Ilex cornuta leaves.
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## Abstract Three new alkaloids, longistylumphyllines A–C (1–3), together with the six known alkaloids deoxycalyciphylline B, deoxyisocalyciphylline B, methyl homosecodaphniphyllate, daphnicyclidin A, daphnicyclidin B, and daphnicyclidin F, were isolated from the stems and leaves of __Daphniphyllum
## Abstract Three new pteridines, hirudinoidines A – C (**1**–**3**, resp.), with novel structural features were isolated from __Hirudo nipponica__ Whitman, and their structures were elucidated on the basis of extensive spectroscopic analyses and by comparison of their spectral data with those of r
Debilosides A -C (1 -3), three new megastigmane glucosides, were isolated from the whole plant of Equisetum debile, together with the four known constituents blumenol A, corchoinoside C, sammangaoside A, and (3S,5R,6R,7E,9S)-9-[(b-D-glucopyranosyl)oxy]megastigm-7-ene-3,5,6-triol (4). Their structure
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