Alkaloids from Cryptocarya densiflora Blume (Lauraceae) and their cholinesterase inhibitory activity

• Main Authors: Wan Othman, Wan Nurul Nazneem, Sivasothy, Yasodha, Liew, Sook Yee, Mohamad, Jamaludin, Nafiah, Mohd Azlan, Ahmad, Kartini, Litaudon, Marc, Awang, Khalijah
• Format: Article
• Published: Elsevier 2017
• Subjects: Q Science (General); QD Chemistry; QH Natural history
• Online Access: http://eprints.um.edu.my/22831/; https://doi.org/10.1016/j.phytol.2017.07.002

(−)-Desmethylsecoantofine N-oxide (1), a new seco-phenanthroindolizidine alkaloid along with prodensiflorins A and B (2-3), two new proaporphine alkaloids, were isolated from the leaves of Cryptocarya densiflora Blume. Their structures were established on the basis of 1D and 2D NMR techniques and LC...