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1.
Eur J Med Chem ; 113: 102-33, 2016 May 04.
Article in English | MEDLINE | ID: mdl-26922232

ABSTRACT

Monocyclic and bicyclic ring systems were investigated as the "core" section of a series of diphenylsulphone-containing acetic acid CRTh2 receptor antagonists. A range of potencies were observed and single-digit nanomolar potencies were obtained in both the monocyclic and bicyclic cores. Residence times for the monocyclic compounds were very short. Some of the bicyclic cores displayed better residence times. A methyl group in the northern part of the core, between the head and tail was a necessary requirement for the beginnings of long residence times. Variations of the tail substitution maximised potencies and residence times.


Subject(s)
Receptors, Immunologic/antagonists & inhibitors , Receptors, Prostaglandin/antagonists & inhibitors , Sulfones/chemistry , Sulfones/pharmacology , Dose-Response Relationship, Drug , Humans , Kinetics , Molecular Structure , Structure-Activity Relationship , Sulfones/chemical synthesis
3.
Bioorg Med Chem Lett ; 24(21): 5123-6, 2014 Nov 01.
Article in English | MEDLINE | ID: mdl-25437505

ABSTRACT

Extensive structure-activity relationship (SAR) and structure-kinetic relationship (SKR) studies in the bicyclic heteroaromatic series of CRTh2 antagonists led to the identification of several molecules that possessed both excellent binding and cellular potencies along with long receptor residence times. A small substituent in the bicyclic core provided an order of magnitude jump in dissociation half-lives. Selected optimized compounds demonstrated suitable pharmacokinetic profiles.


Subject(s)
Acetates/chemistry , Bridged Bicyclo Compounds/chemistry , Receptors, Immunologic/antagonists & inhibitors , Receptors, Prostaglandin/antagonists & inhibitors , Acetates/chemical synthesis , Acetates/pharmacokinetics , Animals , Half-Life , Humans , Indoles/chemistry , Injections, Intravenous , Rats , Rats, Wistar , Receptors, Immunologic/metabolism , Receptors, Prostaglandin/metabolism , Structure-Activity Relationship
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