Establishment of substituent effects in the DNA binding subunit of CBI analogues of the duocarmycins and CC-1065
摘要:
An extensive series of CBI analogues of the duocarmycins and CC-1065 exploring substituent effects within the first indole DNA binding subunit is detailed. In general, substitution at the indole C5 position led to cytotoxic potency enhancements that can be greater than or equal to 1000- fold providing simplified analogues containing a single DNA binding subunit that are more potent (IC50 = 2-3 pM) than CBI-TMI, duocarmycin SA, or CC-1065. (C) 2003 Elsevier Ltd. All rights reserved.
SELECTIVE METAL-MEDIATED ARYLATION OF DICHALCOGENIDES IN BIOMOLECULES
申请人:Massachusetts Institute of Technology
公开号:US20210206791A1
公开(公告)日:2021-07-08
Disclosed are methods of selective cysteine and selenocysteine modification on peptide/protein molecules under physiologically relevant conditions. The methods feature several advantages over existing methods of peptide modification, such as specificity towards thiols and selenols over other nucleophiles (e.g., amines, hydroxyls), excellent functional group tolerance, and mild reaction conditions, including completely aqueous reaction conditions. Also disclosed are methods of preparing palladium complexes in the presence of oxygen.