norethisterone   Click here for help

GtoPdb Ligand ID: 2880

Synonyms: Micronor® | norethindrone | Noriday®
Approved drug PDB Ligand
norethisterone is an approved drug (FDA (1973))
Compound class: Synthetic organic
Comment: A synthetic progestational hormone but more potently inhibits ovulation than does progesterone.
Marketed formulations may contain norethisterone acetate (PubChem CID 5832).
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2D Structure
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Physico-chemical Properties
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Hydrogen bond acceptors 2
Hydrogen bond donors 1
Rotatable bonds 0
Topological polar surface area 37.3
Molecular weight 298.19
XLogP 3.24
No. Lipinski's rules broken 0
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Isomeric SMILES C#C[C@]1(O)CC[C@@H]2[C@]1(C)CC[C@H]1[C@H]2CCC2=CC(=O)CC[C@H]12
InChI InChI=1S/C20H26O2/c1-3-20(22)11-9-18-17-6-4-13-12-14(21)5-7-15(13)16(17)8-10-19(18,20)2/h1,12,15-18,22H,4-11H2,2H3/t15-,16+,17+,18-,19-,20-/m0/s1
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Summary of Clinical Use Click here for help
Used as a contraceptive and to treat menstrual disorders such as endometriosis, or abnormal vaginal bleeding caused by a hormone imbalance.
Mechanism Of Action and Pharmacodynamic Effects Click here for help
Synthetic progestin and agonist of the progesterone receptor. Once bound to the receptor, norethisterone slows the frequency of the pulsatile release of GnRH from the hypothalamus and blunts the pre-ovulatory surge of LH.
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