Structural elucidation and NMR assignments of four aromatic lactones from a mangrove endophytic fungus (No. GX4-1B)

Hongbo Huang; Qing Li; Xiaojun Feng; Bin Chen; Jun Wang; Lan Liu; Zhigang She; Yongcheng Lin

doi:10.1002/mrc.2605

Structural elucidation and NMR assignments of four aromatic lactones from a mangrove endophytic fungus (No. GX4-1B)

Magn Reson Chem. 2010 Jun;48(6):496-9. doi: 10.1002/mrc.2605.

Authors

Hongbo Huang¹, Qing Li, Xiaojun Feng, Bin Chen, Jun Wang, Lan Liu, Zhigang She, Yongcheng Lin

Affiliation

¹ School of Chemistry and Chemical Engineering, Sun Yat-Sen (Zhongshan) University, Guangzhou, 510275, PR China.

PMID: 20474030
DOI: 10.1002/mrc.2605

Abstract

Two new aromatic lactones, 6-hydroxy-4-hydroxymethyl-8-methoxy-3- methylisocoumarin (1) and 1,10-dihydroxy-8-methyl-dibenz[b, e]oxepin-6,11-dione (2), together with two known compounds, 1,10-dihydroxy-dibenz[b, e]oxepin-6,11-dione (3) and 3-hydroxymethyl-6,8-dimethoxycoumarin (4), were isolated from a mangrove endophytic fungus (No. GX4-1B) collected from the South China Sea. Their structures were elucidated and the data of (1)H and (13)C NMR were assigned completely by HREIMS, 1D and 2D NMR experiments including HMQC, HMBC and NOESY.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Fungi / chemistry*
Hydrocarbons, Aromatic / chemistry*
Lactones / chemistry*
Magnetic Resonance Spectroscopy / methods*
Rhizophoraceae / microbiology*

Substances

Hydrocarbons, Aromatic
Lactones