Nakashima Ken-Ichi, Tomida Junko, Hirai Takao, Kawamura Yoshiaki, Inoue Makoto
Laboratory of Medicinal Resources, School of Pharmacy, Aichi Gakuin University, 1-100 Kusumoto-cho, Chikusa-ku, Nagoya, Aichi, Japan.
Department of Microbiology, School of Pharmacy, Aichi Gakuin University, 1-100 Kusumoto-cho, Chikusa-ku, Nagoya, Aichi, Japan.
Beilstein J Org Chem. 2020 Feb 28;16:290-296. doi: 10.3762/bjoc.16.28. eCollection 2020.
Talaromycones A () and B (), new xanthenediones, were isolated from the cultures of sp. ECN211, an endophytic fungus, along with α-diversonolic ester (), aspergillusone B (), glauconic acid (), and rosellisin (). The planar structures of and were elucidated by extensive spectroscopic analyses. Furthermore, the absolute configurations of - were determined by single-crystal X-ray diffraction and electronic circular dichroism spectroscopy (ECD). In addition, the crystallographic data for were updated for the first time in over 50 years.
从内生真菌ECN211菌株的培养物中分离出新型呫吨二酮类化合物塔拉罗米酮A( )和B( ),同时还分离出了α-多样松脂酸酯( )、曲霉酮B( )、绿胶霉素( )和罗塞尔菌素( )。通过广泛的光谱分析阐明了 和 的平面结构。此外,通过单晶X射线衍射和电子圆二色光谱(ECD)确定了 - 的绝对构型。此外, 的晶体学数据在50多年来首次得到更新。