Chemical constituents of the stems of Neolitsea kedahensis Gamble

• Main Authors: Jani, Nor Akmalazura, Mohd Sirat, Hasnah, Ahmad, Farediah, Abed, Salam Ahmed, Aminudin, Nurul Iman
• Format: Article
• Language: English; English; English
• Published: Elsevier Ltd 2018
• Subjects: QD Chemistry
• Online Access: http://irep.iium.edu.my/64774/1/64774_Chemical%20constituents%20of%20the%20stems.pdf; http://irep.iium.edu.my/64774/2/64774_Chemical%20constituents%20of%20the%20stems_SCOPUS.pdf; http://irep.iium.edu.my/64774/13/64774_Chemical%20constituents%20of%20the%20stems%20of%20Neolitsea%20kedahensis%20Gamble_WoS.pdf; http://irep.iium.edu.my/64774/; https://www.sciencedirect.com/science/article/pii/S1874390017305906
• Institution: Universiti Islam Antarabangsa Malaysia

Two new β-carboline alkaloids, daibucarbolines D (1) and E (2) and one new sesquiterpene dilactone, pseudovillosine (3), together with five known compounds, taraxerone, taraxerol, pseudoneoliacine, daibucarboline A and linderaggrine A were isolated from the stems of Neolitsea kedahensis (Lauraceae). The structures were confirmed through extensive spectroscopic analysis, while the relative configuration of compound (3) was determined by a single crystal X-ray diffraction.