Two pairs of enantiomeric α-pyrone dimers from the endophytic fungus Phoma sp. YN02-P-3

Autor: Shao-Fei Chen, Hai-Feng Wang, Jiao Bai, Xiao-Jie Lu, Xiao An, Dan Zhao, Xia-Nan Sang, Yue-Hu Pei, Gang Chen, Sheng-Ge Li
Rok vydání: 2017
Předmět:
Zdroj: RSC Advances. 7:1943-1946
ISSN: 2046-2069
DOI: 10.1039/c6ra26319d
Popis: (±) Phomones A (1) and B (2), two pairs of novel enantiomeric α-pyrone dimers from the endophytic fungus Phoma sp. YN02-P-3 are reported. Compounds 1 and 2 are the first examples of 6-α,β-unsaturated ester-2-pyrone dimers, and compound 1 possesses a novel 6/4/5/6 tetracyclic ring system. Their structures and stereochemistry were determined by the analysis of extensive spectroscopic data, ECD calculations and single-crystal X-ray diffraction data.
Databáze: OpenAIRE