Ro 51 - CAS 1050670-85-3
Category: Inhibitor
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Molecular Weight:
P2X Receptor
Ro 51 is a potent and selective dual antagonist of purinoceptor subtypes P2X3 and P2X2/3 (IC50 values are 2 and 5 nM for rP2X3 and hP2X2/3 respectively), without significant activity on other P2X receptors (IC50 values are > 10 μM for P2X1, P2X2, P2X4, P2X5, and P2X7). P2X3 and P2X2/3 have been shown to play a pivotal role in models of various pain conditions making Ro 51 a potential option in the treatment of pain.
≥98% by HPLC
2-[[4-Amino-5-[5-iodo-4-methoxy-2-(1-methylethyl)phenoxy]-2,4-pyrimidinyl]amino]-1,3-propanediol; Ro51; Ro-51; CHEMBL494161; 1050670-85-3; SCHEMBL4970553
Store in a cool and dry place (or refer to the Certificate of Analysis).
Canonical SMILES:
1.Identification and SAR of novel diaminopyrimidines. Part 2: The discovery of RO-51, a potent and selective, dual P2X(3)/P2X(2/3) antagonist for the treatment of pain.
Jahangir A;Alam M;Carter DS;Dillon MP;Bois DJ;Ford AP;Gever JR;Lin C;Wagner PJ;Zhai Y;Zira J Bioorg Med Chem Lett. 2009 Mar 15;19(6):1632-5. doi: 10.1016/j.bmcl.2009.01.097. Epub 2009 Feb 4.
The purinoceptor subtypes P2X(3) and P2X(2/3) have been shown to play a pivotal role in models of various pain conditions. Identification of a potent and selective dual P2X(3)/P2X(2/3) diaminopyrimidine antagonist RO-4 prompted subsequent optimization of the template. This paper describes the SAR and optimization of the diaminopyrimidine ring and particularly the substitution of the 2-amino group. The discovery of the highly potent and drug-like dual P2X(3)/P2X(2/3) antagonist RO-51 is presented.
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CAS 1050670-85-3 Ro 51

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