期刊
CHEMBIOCHEM
卷 17, 期 4, 页码 308-317出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cbic.201500569
关键词
boron neutron capture therapy; carboranes; metallacarboranes; peptides; zwitterions
资金
- Fonds der Chemischen Industrie (FCI)
- Europaischer Fond fur regionale Entwicklung (EFRE)
- Europaischer Strukturfond (ESF)
- DFG [BE 1264-9/2, FOR630]
- Graduate School of Natural Sciences Leipzig-Building with Molecules and Nano-objects (BuildMoNa)
The cobalt bis(dicarbollide) complex [commo-3,3-Co(1,2-C2B9H11)(2)](-) has captured much attention in biochemical and medical contexts, in particular for the treatment of tumors by boron neutron capture therapy (BNCT). Derivatives of cobalt bis(dicarbollide) are commonly prepared through ring-opening reactions of cyclic oxonium ions, so the corresponding products are usually charged. Furthermore, attempts to incorporate cobalt bis(dicarbollide) into peptides are rare, despite obvious potential advantages. Here the synthesis of an imidazolium-based charge-compensated cobalt bis(dicarbollide) building block, which allows additional modifications with moieties of biochemical relevance, such as monosaccharides, is reported. Furthermore, conjugates of these building blocks with the Y-1-receptor-selective derivative of neuropeptideY ([F-7,P-34]-NPY) retained excellent response to hY(1) receptors found to be overexpressed in breast tumors and metastases.
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