Bleomyclin model complex bearing a carbamoyl derived substituent capable of coordination to the chelated metal ion as a sixth ligand
摘要:
A new, simple bleomycin (BLM) model compound bearing a carbamoyl group mimicking BLM's sugar-tagged carbamoyl moiety was synthesized and the physicochemical properties of its divalent metal complexes were studied. The Fe complex of the model compound exhibited enhanced oxygen activating ability. Copyright (C) 1996 Elsevier Science Ltd
Distal Effect of Amide and Amino Groups on the Oxygen Activation Ability and Rate of the Redox Reaction of Simplified Analogs of Bleomycin
作者:Takayuki Arai、Kazuo Shinozuka、Hiroaki Sawai
DOI:10.1246/bcsj.71.1159
日期:1998.5
compounds, which bear a carbamide (1), bulky t-butyl (2), simple alkyl (3), or amino group (4) around the sixth coordination site, have been synthesized in order to study the effect of the distal substituents on the redox reaction and oxygen activation ability of the ironcomplexes. The carbamide group in 1 lowers the pK values of the all-amino donors of the ligand, which enhances complex formation. The oxygen