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Updated: Jun 5, 2025

Caffeine Extraction, Enzymatic Activity and Gene Expression of Caffeine Synthase from Plant Cell Suspensions
Published on: October 2, 2018
Two new sesquiterpenol caffeates from Bauhinia brychycarpa Wall. ex Benth. and their α-glucosidase inhibitory
Xingping Zhang1, Wenjie Ma2, Kepu Huang1
1School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming 650500, PR China.
Abstract:
Two new sesquiterpenol caffeates, bausesquitate A (1) and bausesquitate B (2), were isolated from the stems and leaves of Bauhinia brychycarpa. Structures of two compounds were confirmed by UV, IR, HR-ESI-MS, 1D and 2D NMR, ECD spectra and DP4+ probability analysis. In vitro, compounds 1 and 2 showed better inhibitory effect on α-glucosidase than acarbose (IC50 = 280.50 ± 6.27 μM) with the IC50 values of 1.81 ± 0.12 μM and 3.79 ± 0.27 μM. Additionally, molecular docking and molecular dynamics simulation were performed to analyze the potential binding sites.
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