一种异黄酮和萜类化合物的分离纯化。(紫木)

IF 1 Q4 CHEMISTRY, MULTIDISCIPLINARY

Ovidius University Annals of Chemistry Pub Date : 2020-01-01 DOI:10.2478/auoc-2020-0002

G. Ndukwe, A. Oluah, G. K. Fekarurhobo

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引用次数: 7

摘要

摘要:通过色谱分离得到两种结晶固体，其性质为3,9-二甲氧基- 6ar, 11ar -二氢- 6h -苯并呋喃(3,2- c)[1]苯并吡喃(又称同翅草卡宾)，分子式为C17H16O4(产率1.57%)和2,4-二甲氧基苯甲醛C9H10O3(产率2.27%)。在紫外光(254 nm)和喷雾试剂(10%硫酸甲醇溶液)的作用下，每个分离的化合物在薄层色谱板上显示一个单一的斑点。利用傅里叶变换红外(FT-IR)光谱、一维和二维核磁共振(NMR)技术实现了结构解析。偏振转移编辑异核单量子相干无扭曲增强(DEPT-ed-HSQC)也是一种有用的工具，可以帮助表征从黑耳木中分离的两种次级代谢物。

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Isolation of an isoflavonoid and a terpenoid from the heartwood of Baphia nitida Lodd. (camwood)

Abstract Chromatographic separation of methanolic extract of Baphia nitida heartwood gave two crystalline solids characterized as 3,9-dimethoxy-6aR,11aR-dihydro-6H-benzofuro(3,2-C)[1]benzopyran (also known as homopterocarpin) with molecular formula C17H16O4 (1.57% yield) and 2,4-dimethoxybenzaldehyde C9H10O3 (2.27% yield). Each of the isolated compounds showed a single spot on developed thin layer chromatographic plate under ultra-violet light (254 nm) and spray reagent (10% sulfuric acid in methanol solution). Structural elucidation was achieved using Fourier transform infrared (FT-IR) spectroscopy, one and two-dimension nuclear magnetic resonance (NMR) techniques. Distortionless enhancement by polarization transfer-edited-heteronuclear single quantum coherence (DEPT-ed-HSQC) was also a useful tool that aided the characterization of the two secondary metabolites isolated from Baphia nitida heartwood.

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来源期刊

Ovidius University Annals of Chemistry CHEMISTRY, MULTIDISCIPLINARY-

自引率

11.10%

发文量

审稿时长

5 weeks