Total synthesis and biological evaluation of fluorinated cryptophycins

Autor: Christine Weiß, Tobias Bogner, Benedikt Sammet, Norbert Sewald
Jazyk: angličtina
Rok vydání: 2012
Předmět:
Zdroj: Beilstein Journal of Organic Chemistry, Vol 8, Iss 1, Pp 2060-2066 (2012)
Druh dokumentu: article
ISSN: 1860-5397
DOI: 10.3762/bjoc.8.231
Popis: Cryptophycins are cytotoxic natural products that exhibit considerable activities even against multi-drug-resistant tumor cell lines. As fluorinated pharmaceuticals have become more and more important during the past decades, fluorine-functionalized cryptophycins were synthesized and evaluated in cell-based cytotoxicity assays. The unit A trifluoromethyl-modified cryptophycin proved to be highly active against KB-3-1 cells and exhibited an IC50 value in the low picomolar range. However, the replacement of the 3-chloro-4-methoxyphenyl-substituent in unit B by a pentafluorophenyl moiety resulted in a significant loss of activity.
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