New glucosidated indole-quinazoline alkaloids from mangrove endophytic fungus Aspergillus fumigatus SAl12

Autor: Shili Guo, Haiming Zhou, Xin Huang, Siyan Peng, Jiayi Li, Bo Ding, Yiwen Tao, Hongbo Huang
Rok vydání: 2023
Předmět:
Zdroj: Natural Product Research. :1-6
ISSN: 1478-6427
1478-6419
DOI: 10.1080/14786419.2023.2209822
Popis: Two new glucosidated indole-containing quinazoline alkaloids designated fumigatosides G (1) and H (2) were isolated from mangrove-derived fungus Aspergillus fumigatus SAl12, together with the known analogues fumigatoside B (3) and fumiquinazoline J (4). The planar structures of the new compounds were elucidated by HR-MS and NMR spectroscopic data analyses. The absolute configurations were determined by comparison of electronic circular dichroic (ECD) spectra with that of the known compound fumigatoside B and with the calculated ECD spectrum. All these indole-quinazoline compounds were tested for anti-bacterial and cytotoxic activities.
Databáze: OpenAIRE