Anthraquinone derivatives from Micromonospora rhodorangea.
From the fermentation broths of the actinomycete Micromonospora rhodorangea, four anthraquinone derivatives (1-4) were isolated, of which 2-ethyl-1,8-dihydroxy-3-methyl-anthraquinone (1) and 3,8-dihydroxy-1-propylanthraquinone (3) were determined as new compounds. Their structures were established by using extensive spectroscopic data analyses. 2-ethyl-1-hydroxy-8-methoxy-3-methyl anthraquinone (2) was isolated from actinomycetes for the first time and its NMR data was assigned.
Xue
Chun-Mei
CM
State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing 100083, People's Republic of China.
Tian
Li
L
Lin
Wen-Han
WH
Deng
Zhi-Wei
ZW
D000880:Anthraquinones / Q000737:chemistry / Q000302:isolation & purification*; D009682:Magnetic Resonance Spectroscopy; D008847:Micromonospora / Q000737:chemistry*; D015394:Molecular Structure
D000880:Anthraquinones