Four new isocoumarins from

Four novel new isocoumarins, cajanolactone B, C, D1 and D2 ( 1-4 ), were isolated from ethanolic extracts of the leaves of Cajanus cajan . The structural elucidation has been completed mainly depending on extensive spectroscopic analysis including UV, IR, NMR (1D and 2D), HRESIMS and chiral analysis...

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Published inRSC advances Vol. 14; no. 11; pp. 7763 - 7769
Main Authors Yao, Liyuan, Jumai, Aikebaier, Huang, Xiaobao, Lin, Tingting, Tao, Zhengguo, Qiu, Sheng-Xiang
Format Journal Article
Published 05.03.2024
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Summary:Four novel new isocoumarins, cajanolactone B, C, D1 and D2 ( 1-4 ), were isolated from ethanolic extracts of the leaves of Cajanus cajan . The structural elucidation has been completed mainly depending on extensive spectroscopic analysis including UV, IR, NMR (1D and 2D), HRESIMS and chiral analysis. Notably, all these new isocoumarins were found to exist in racemic forms, among which compounds 3 and 4 share the same planar structure. This finding suggests that at least the biosynthesis of isocoumarin in C. cajan is chiral tolerant. A plausible biogenetic pathway of compounds 1-4 is proposed. Four novel new isocoumarins, cajanolactone B, C, D1 and D2 ( 1-4 ), were isolated from ethanolic extracts of the leaves of Cajanus cajan .
Bibliography:https://doi.org/10.1039/d3ra08149d
Electronic supplementary information (ESI) available. See DOI
ISSN:2046-2069
DOI:10.1039/d3ra08149d