Thuc Huy Duong, Huong Thuy Le, Y Thien Vu, Gia-Huy Duong, Thi-Kim-Dung Le, Minh-Khai Dang, Duc-Dung Pham, Nguyen-Kim-Tuyen Pham, Jirapast Sichaem, Ngoc-Hong Nguyen
A bio-guided isolation was applied to the Vietnamese lichen Roccella montagnei based on alpha-glucosidase inhibition. Six compounds were isolated and structurally elucidated, including a new ortho depside, montagneside A (1), together with five known compounds, sekikaic acid (2), lanost-7-en-3β-ol (3), ethyl orsellinate (4), D-montagnetol (5), and D-erythrin (6). Their chemical structures were identified by extensive 1D and 2D NMR analysis, high-resolution mass spectroscopy, and comparisons with those reported in the literature...
April 5, 2024: Chemistry & Biodiversity