GtoPdb Ligand ID: 2805

Synonyms: Mifeprex® | RU-486 | RU486
mifepristone is an approved drug (FDA (2000))
Compound class: Synthetic organic
Comment: An antagonist of both the glucocorticoid receptor and the progesterone receptor.
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2D Structure
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Physico-chemical Properties
Hydrogen bond acceptors 3
Hydrogen bond donors 1
Rotatable bonds 2
Topological polar surface area 40.54
Molecular weight 429.27
XLogP 4.66
No. Lipinski's rules broken 0
Canonical SMILES CC#CC1(O)CCC2C1(C)CC(c1ccc(cc1)N(C)C)C1=C3CCC(=O)C=C3CCC21
Isomeric SMILES CC#C[C@]1(O)CC[C@@H]2[C@]1(C)C[C@H](c1ccc(cc1)N(C)C)C1=C3CCC(=O)C=C3CC[C@@H]21
InChI InChI=1S/C29H35NO2/c1-5-15-29(32)16-14-26-24-12-8-20-17-22(31)11-13-23(20)27(24)25(18-28(26,29)2)19-6-9-21(10-7-19)30(3)4/h6-7,9-10,17,24-26,32H,8,11-14,16,18H2,1-4H3/t24-,25+,26-,28-,29-/m0/s1
No information available.
Summary of Clinical Use
As a progesterone receptor antagonist this drug is used to induce medical termination of pregnancy (<49 days gestation). As a glucocorticoid receptor antagonist, this drug may be used in certain patients to treat hypercortisolism associated with nonpituitary Cushing's syndrome.
Mechanism Of Action and Pharmacodynamic Effects
Mifepristone competitively binds to the progesterone receptor, which inhibits the activity of progesterone.