Two new < em > N < /em > -containing heterocyclic compounds from the roots of < em > Platycodon grandiflorus < /em >

Nat Prod Res. 2024 Apr 29:1-8. doi: 10.1080/14786419.2024.2347453. Online ahead of print.ABSTRACTTwo unusual N-containing heterocyclic compounds, Plagranlines B-C, were isolated from the roots of Platycodon grandiflorus. Plagranline B (1) was consisted of neolignane and monomeric quinoline constituent units and plagranline C (2) possessed pyridinone ring that was not commonly discovered in natural product. Their planar structures were elucidated based on analysis of NMR and HRESIMS spectroscopy data, and their absolute configurations were determined by quantum chemical calculations, including GIAO 13C NMR (DP4+) calculation and ECD calculation. In addition, extensive activity screening including glycosidases, oestrogen-like, and NO inhibitory assays were performed, compounds 1 and 2 possessed the weak activities.PMID:38684028 | DOI:10.1080/14786419.2024.2347453

Source: Natural Product Research - April 29, 2024 Category: Biochemistry Authors: Lan Ding Xin-Yin Cai Ren-Nai Yang Liang-Ping Zha Shuang-Ying Gui Jin-Song Liu Ju-Tao Wang Yang Yu Source Type: research