Four New Sesquiterpenoids from the Rice Fermentation of <i>Antrodiella albocinnamomea</i>

oleh: Min Guo, Ying-Zhong Liang, Xiu-Ming Cui, Lin-Jiao Shao, Yin-Fei Li, Xiao-Yan Yang

Format: Article
Diterbitkan: MDPI AG 2022-05-01

Deskripsi

Albocimea B-E (<b>1</b>–<b>4</b>), four new sesquiterpenoids, and four known compounds, steperoxide A (<b>5</b>), dankasterone (<b>6</b>), 1<i>H</i>-indole-3-carboxylic acid (<b>7</b>), and (+)-formylanserinone B (<b>8</b>), were isolated from the rice fermentation of the fungus <i>Antrodiella albocinnamomea</i>. The structures of new compounds were elucidated by comprehensive spectroscopic techniques, the planar structures of new compounds were determined by comprehensive spectroscopic techniques, and their absolute configurations were confirmed via gauge-independent atomic orbital calculations (GIAO), calculation of the electronic circular dichroism (ECD), and optical rotation (OR). These were determined by spectroscopic data analysis.