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Details

Stereochemistry ABSOLUTE
Molecular Formula C29H31NO4.ClH
Molecular Weight 494.022
Optical Activity UNSPECIFIED
Defined Stereocenters 1 / 1
E/Z Centers 0
Charge 0

SHOW SMILES / InChI
Structure of ACOLBIFENE HYDROCHLORIDE

SMILES

Cl.CC1=C([C@@H](OC2=C1C=CC(O)=C2)C3=CC=C(OCCN4CCCCC4)C=C3)C5=CC=C(O)C=C5

InChI

InChIKey=BYQDPIXWTVEVEA-JMAPEOGHSA-N
InChI=1S/C29H31NO4.ClH/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;1H/t29-;/m0./s1

HIDE SMILES / InChI

Molecular Formula C29H31NO4
Molecular Weight 457.5607
Charge 0
Count
MOL RATIO 1 MOL RATIO (average)
Stereochemistry ABSOLUTE
Additional Stereochemistry No
Defined Stereocenters 1 / 1
E/Z Centers 0
Optical Activity UNSPECIFIED

Molecular Formula ClH
Molecular Weight 36.461
Charge 0
Count
MOL RATIO 1 MOL RATIO (average)
Stereochemistry ACHIRAL
Additional Stereochemistry No
Defined Stereocenters 0 / 0
E/Z Centers 0
Optical Activity NONE

Description

Acolbifene, the active metabolite of EM-800, was identified as a pure antagonist that acts on both activation domains of the ERs. It is in Phase III clinical trials for the prevention of breast cancer and vasomotor symptoms (Hot flush) in postmenopausal women. Most commonly reported adverse events included irregular menses, leg/muscle cramps, diarrhea, and hot flashes. No serious adverse events were reported.

Originator

Approval Year

Targets

Primary TargetPharmacologyConditionPotency
0.52 nM [IC50]

Conditions

ConditionModalityTargetsHighest PhaseProduct
Primary
Unknown
Palliative
Unknown

Overview

CYP3A4CYP2C9CYP2D6hERG

Drug as perpetrator​

Drug as victim

PubMed

Sample Use Guides

In Vivo Use Guide
20 mg daily for 6-8 months
Route of Administration: Oral
In Vitro Use Guide
As measured by competition studies in human breast cancer tissue, the anity of EM-652 (Ki=0.047 nM, RBA=291, relative to 17b-estradiol set at 100) studied in the presence of ethanol was 2.9 higher than that of estradiol itself (RBA=6.62).
Substance Class Chemical
Record UNII
KXC7811DBY
Record Status Validated (UNII)
Record Version