167837-57-2Relevant articles and documents
Potent antiproliferative activity of bradykinin B2 receptor selective agonist FR-190997 and analogue structures thereof: A paradox resolved?
Rassias, Gerasimos,Leonardi, Sofia,Rigopoulou, Dionisia,Vachlioti, Eleanna,Afratis, Konstantinos,Piperigkou, Zoi,Koutsakis, Christos,Karamanos, Nikos K.,Gavras, Haralambos,Papaioannou, Dionissios
supporting information, (2020/11/12)
Βradykinin stimulation of B2 receptor is known to activate the oncogenic ERK pathway and overexpression of bradykinin receptors B1 and B2 has been reported to occur in glioma, colorectal and cervical cancers. B1R and B2R antagonists have been shown to reverse tumor proliferation and invasion. Paradoxically, B1R and B2R agonism has also been reported to elicit antiproliferative benefits. In order to complement the data accumulated to date with the natural substrate bradykinin and peptidic B2R antagonists, we decided to examine for the first time the response elicited by B2R stimulation in breast cancer lines with a non-peptidic small molecule B2R agonist. We synthesized and assessed the highly selective and potent B2R partial agonist FR-190997 in MCF-7 and MDA-MBA-231 breast cancer lines and found it possessed significant antiproliferative activity (IC50 2.14 and 0.08 μΜ, respectively). The modular nature of FR-190997 allowed us to conduct a focused SAR study and discover compound 10 which exhibits subnanomolar antiproliferative activity (IC 50 0.06 nΜ) in the TNBC MDA-MBA-231 cell line. This performance surpasses, in most cases by several orders of magnitude, those of established anticancer agents and FDA-approved breast cancer drugs. In line with the established literature we suggest that this remarkable activity precipitates from a dual mode of action involving agonist-induced receptor internalization/degradation combined with sequestration of functional intracellular B2 receptors and inhibition of the associated endosomal signaling. The latter mode may be realized by appropriate ligands regardless of B2R agonist/antagonist designation which only relates to membrane residing GCPRs. Under this prism the controversy over the antiproliferative effects of B2 agonists and antagonists is potentially neutralized.
NMDA RECEPTOR MODULATORS AND USES RELATED THERETO
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Page/Page column 28; 58, (2014/03/21)
This disclosure relates to NMDA modulators and used related thereto such as for treatment of central nervous system disorders. In certain embodiments, compounds disclosed herein are NR2C subunit-selective NMDA potentiators. In certain embodiments, the disclosure contemplates compounds and pharmaceutical compositions. In certain embodiments, the disclosure contemplates compounds disclosed herein as prodrugs, optionally substituted with one or more substituents, derivatives, or salts thereof. In certain embodiments, the disclosure relates to methods of treating or preventing nervous system disorders comprising administering an effective amount of a composition comprising compound disclosed herein to a subject in need thereof.
Rhodium-catalyzed oxidative cycloaddition of benzamides and alkynes via C-H/N-H activation
Hyster, Todd K.,Rovis, Tomislav
supporting information; experimental part, p. 10565 - 10569 (2010/09/17)
The oxidative cycloaddition of benzamides and alkynes has been developed. The reaction utilizes Rh(III) catalysts in the presence of Cu(II) oxidants, and is proposed to proceed by N-H metalation of the amide followed by ortho C-H activation. The resultant rhodacycle undergoes alkyne insertion to form isoquinolones in good yield. The reaction is tolerant of extensive substitution on the amide, alkyne, and arene, including halides, silyl ethers, and unprotected aldehydes as substituents. Unsymmetrical alkynes proceed with excellent regioselectivity, and heteroaryl carboxamides are tolerated leading to intriguing scaffolds for medicinal chemistry. A series of competition experiments shed further light on the mechanism of the transformation and reasons for selectivity.
