title: 1H and 13C NMR assignments for two oxaphenalenones bacillosporin C and D from the mangrove endophytic fungus SBE-14.
abstract: The complete (1)H and (13)C NMR assignments are reported for the novel natural product Bacillosporin D together with the known compound Bacillosporin C. These compounds containing seven rings were isolated from the mangrove endophytic fungus SBE-14 from the South China Sea. 1D and 2D NMR experiments, including COSY, HMQC and HMBC were used to the determination of the structures and NMR assignments. It is proposed that 1 was biogenetically produced by transforming 2. Transforming a lactone to an anhydride is unusual in nature.
authors: School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, PR China.
authors: Zhiyong
authors: Z
authors: Guo
authors: Changlun
authors: C
authors: Shao
authors: Zhigang
authors: Z
authors: She
authors: Xiaoling
authors: X
authors: Cai
authors: Fan
authors: F
authors: Liu
authors: L L P
authors: LL
authors: Vrijimoed
authors: Yongcheng
authors: Y
authors: Lin
mesh_terms: D002247:Carbon Isotopes; D002681:China; D005658:Fungi / Q000737:chemistry*; D006576:Heterocyclic Compounds, 4 or More Rings / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D009792:Oceans and Seas; D043803:Phenalenes / Q000737:chemistry*; D011522:Protons
chemical_list: D002247:Carbon Isotopes; D006576:Heterocyclic Compounds, 4 or More Rings; D043803:Phenalenes; D011522:Protons; C521460:bacillosporin C; C521461:bacillosporin D; C038036:phenalen-1-one