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Issue 20, 2020
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Amide and ester derivatives of chlorido[4-carboxy-1,2-disalicylideneaminobenzene]iron(iii) as necroptosis and ferroptosis inducers

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Abstract

In continuation of the structure-activity study about 4-substituted chlorido[N,N′-disalicylidene-1,2-phenylenediamine]iron(III) complexes as necroptosis and ferroptosis inducers, we introduced a 4-COOH group at the 1,2-phenylenediamine moiety of the lead ([Fe(III)salopheneCl]) and derived the resulting complex 15 to the respective ethyl, propyl, or butyl amides (16–18) and esters (19–21). The compounds 16–21 exerted concentration-dependent antiproliferative and antimetabolic effects against HL-60 cells. The esters were more active than the analogous amides. Elongation of the alkyl chain enhanced the activity of the amides, while that of the esters decreased. The complexes 16–21 induced necroptosis and/or ferroptosis but not apoptosis. Studies on protein binding and uptake into HL-60 cells indicated that the complexes mainly accumulated by passive transport. The high binding tendency of all complexes to apo-Transferrin, however, points to participation of a carrier-mediated transport into the cells, too.

Graphical abstract: Amide and ester derivatives of chlorido[4-carboxy-1,2-disalicylideneaminobenzene]iron(iii) as necroptosis and ferroptosis inducers

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Article information


Submitted
15 Jan 2020
Accepted
26 Apr 2020
First published
29 Apr 2020

Dalton Trans., 2020,49, 6842-6853
Article type
Paper

Amide and ester derivatives of chlorido[4-carboxy-1,2-disalicylideneaminobenzene]iron(III) as necroptosis and ferroptosis inducers

D. Baecker, B. N. Ma, J. Sagasser, L. Schultz, C. Hörschläger, M. Weinreich, L. Steiner, B. Kircher and R. Gust, Dalton Trans., 2020, 49, 6842
DOI: 10.1039/D0DT00168F

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