Abstract:
:N(1)-Phenyl-3,5-dinitro-N(4),N(4)-di-n-propylsulfanilamide (1) and N(1)-phenyl-3,5-dinitro-N(4),N(4)-di-n-butylsulfanilamide (2) show potent in vitro antimitotic activity against kinetoplastid parasites but display poor in vivo activity. Seventeen new dinitroaniline sulfonamide and eleven new benzamide analogs of these leads are reported here. Nine of the sulfonamides display in vitro IC(50) values under 500 nM against African trypanosomes, and the most active antikinetoplastid compounds also inhibit the in vitro assembly of purified leishmanial tubulin with potencies similar to that of 2. While several of the potent compounds are rapidly degraded by rat liver S9 fractions in vitro, N(1)-(3-hydroxy)phenyl-3,5-dinitro-N(4),N(4)-di-n-butylsulfanilamide (21) displays an IC(50) value of 260 nM against African trypanosomes in vitro and is more stable than 2 in the in vitro metabolism assay.
journal_name
Bioorg Med Chemjournal_title
Bioorganic & medicinal chemistryauthors
George TG,Johnsamuel J,Delfín DA,Yakovich A,Mukherjee M,Phelps MA,Dalton JT,Sackett DL,Kaiser M,Brun R,Werbovetz KAdoi
10.1016/j.bmc.2006.04.017subject
Has Abstractpub_date
2006-08-15 00:00:00pages
5699-710issue
16eissn
0968-0896issn
1464-3391pii
S0968-0896(06)00299-9journal_volume
14pub_type
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