(Rac)-Acolbifene

• CAT Number: R045583
• CAS Number: 151533-34-5
• Molecular Formula: C29H31NO4
• Molecular Weight: 457.56
• Purity: ≥95%
• Synonyms: 3-(4-hydroxyphenyl)-4-methyl-2-[4-(2-piperidin-1-ylethoxy)phenyl]-2H-chromen-7-ol
• InChI: InChI=1S/C29H31NO4/c1-20-26-14-11-24(32)19-27(26)34-29(28(20)21-5-9-23(31)10-6-21)22-7-12-25(13-8-22)33-18-17-30-15-3-2-4-16-30/h5-14,19,29,31-32H,2-4,15-18H2,1H3
• InChIKey: DUYNJNWVGIWJRI-UHFFFAOYSA-N
• SMILES: CC1=C(C(OC2=C1C=CC(=C2)O)C3=CC=C(C=C3)OCCN4CCCCC4)C5=CC=C(C=C5)O

(Rac)-Acolbifene (EM-343; (Rac)-EM-652) is the racemic form of EM652 (estrogen receptor antagonist), has anti-estrogenic and estrogenic activities. (Rac)-Acolbifene (EM-343; (Rac)-EM-652) contains a piperidine ring, shows good pharmacological profile,relative binding affinity (RBA)=380[1].
(Rac)-Acolbifene (EM-343; (Rac)-EM-652)  shows a inhibitory effect in T-47D cells with an IC50 value of 0.110 nM[1].
(Rac)-Acolbifene (orally adminstration; 7.5 nM, 75 nM; 9 days; once daily) shows a good pharmacological profile in ovariectomized mice, shows 63% and 84% antiuterotrophic inhibitions at the 7.5 and 75 nM doses, respectively (PK study, ovariectomized mice)[1].

Reference

[1]. Gauthier S1,et al.Synthesis and structure-activity relationships of analogs of EM-652 (acolbifene), a pure selective estrogen receptor modulator. Study of nitrogen substitution.J Enzyme Inhib Med Chem. 2005 Apr;20(2):165-77.
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