南海红树林真菌桂孢菌（编号4382）中6-去甲基弗米他汀和两种青霉噻唑衍生物的1H和13C核磁共振谱归属
1H and 13C NMR assignments for 6-demethylvermistatin and two penicillide derivatives from the mangrove fungus Guignardia sp. (No. 4382) from the South China Sea.
作者信息
Xia Xue-Kui, Liu Fan, She Zhi-Gang, Yang Li-Guo, Li Meng-Feng, Vrijmoed L L P, Lin Yong-Cheng
机构信息
School of Chemistry and Chemical Engineering, Sun Yat-sen (Zhongshan) University, Guangzhou, Guangdong, 510275, P.R. China.
出版信息
Magn Reson Chem. 2008 Jul;46(7):693-6. doi: 10.1002/mrc.2216.
One new compound 6-demethylvermistatin (1), together with two known compounds, the penicillide derivatives (2) and (3) were isolated from the mangrove fungus Guignardia sp. No. 4382 obtained from the South China Sea. Their structures were assigned using high-resolution electron ionization mass spectrometry(HREIMS), (1)H and (13)C NMR spectra, DEPT, and by 2D COSY, HMQC, and HMBC experiments. The absolute configuration of 1 was established by comparison of its CD with that of vermistatin.
从中国南海采集的红树真菌Guignardia sp. No. 4382中分离出一种新化合物6-去甲基弗米他汀（1）以及两种已知化合物，即盘菌内酯衍生物（2）和（3）。通过高分辨率电子电离质谱（HREIMS）、（1）H和（13）C核磁共振谱、DEPT以及二维COSY、HMQC和HMBC实验确定了它们的结构。通过比较1的圆二色光谱与弗米他汀的圆二色光谱确定了1的绝对构型。
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