50299-42-8Relevant articles and documents
Bromo-tyrosine alkaloidal compound as well as preparation method and application thereof
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Paragraph 0039; 0041; 0044, (2018/04/03)
The invention belongs to the field of a medical technology, and concretely relates to a bromo-tyrosine alkaloidal compound as well as a preparation method and application thereof. The invention provides the bromo-tyrosine alkaloidal compound as shown in a general formula I and a general formula II, the preparation method thereof, and the application thereof in preparing an antitumor drug for the first time. The bromo-tyrosine alkaloidal compound has good antineoplastic activity, the preparation method is simple and feasible, the yield is better, and the bromo-tyrosine alkaloidal compound has abroad application prospect.
Bromotyrosine-derived Metabolites from the Sponge Aiolochoria crassa
Gao, Hongfeng,Kelly, Michelle,Hamann, Mark T.
, p. 9717 - 9726 (2007/10/03)
A chemical investigation of secondary metabolites from the sponge Aiolochroia crassa has been performed and five bromotyrosine derivatives (1-5) were identified. Their structures have been assigned on the basis of spectroscopic analysis, of which araplysillin III (2) and hexadellin C (3) possess new structures. The absolute configurations of dibromotyrosine moieties of 2 were determined by HPLC analysis of derivatized constituent amino acids obtained from acid hydrolysis. The stereochemistry of the spirocyclohexadienylisoxazoline moiety of compounds 1-3 was deduced from spectroscopic comparison of the same moiety of aerothionin, of which the absolute configuration was previously assigned by X-ray and CD analysis. - Keywords: antibiotics; marine metabolites; spiro compounds.