Two new bromotyrosine derivatives from the marine sponge Pseudoceratina sp.
Two new bromotyrosine alkaloids, purealidins T and U (1 and 2, resp.), along with five known bromotyrosines 3-7, were isolated from marine sponge Pseudoceratina sp. Their structures were elucidated on the basis of extensive spectroscopic data (CD, IR, 1D- and 2D-NMR, and MS) analysis.
Ma
Ke
K
State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing 100083, P. R. China.
Yang
Yi
Y
Deng
Zhiwei
Z
de Voogd
Nicole J
NJ
Proksch
Peter
P
Lin
Wenhan
W
D000470:Alkaloids / Q000737:chemistry / Q000302:isolation & purification*; D000818:Animals; D045744:Cell Line, Tumor / Q000187:drug effects; D002942:Circular Dichroism; D006801:Humans; D019906:Nuclear Magnetic Resonance, Biomolecular; D011161:Porifera / Q000737:chemistry; D021241:Spectrometry, Mass, Electrospray Ionization; D053719:Tandem Mass Spectrometry; D014443:Tyrosine / Q000031:analogs & derivatives* / Q000302:isolation & purification
D000470:Alkaloids; C475724:bromotyrosine; D014443:Tyrosine