megestrol   Click here for help

GtoPdb Ligand ID: 9128

Synonyms: Chronopil | Magestin | Megace® | megestryl acetate
Approved drug
megestrol is an approved drug (FDA (1971))
Compound class: Synthetic organic
Comment: Megestrol (commonly administered as the acetate ester: PubChem CID 11683) is a synthetic derivative of the female sex hormone progesterone. It has anti-estrogenic and antineoplastic activity.
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View more information in the IUPHAR Pharmacology Education Project: megestrol

2D Structure
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2D Structure

An image of the ligand's 2D structure. For small molecules with SMILES these are drawn using the NCI/CADD Chemical Identifier Resolver. Click on the image to access the chemical structure search tool with the ligand pre-loaded in the structure editor. For other types of ligands, e.g. longer nucleotides and peptides, a manually drawn representation of the molecule may be provided.

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Physico-chemical Properties
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Physico-chemical Properties

Calculated molecular properties are available for small molecules and natural products (not peptides). Properties were generated using the CDK toolkit. All properties were selected to enable the prediction of the Lipinski Rule-of-Five profile or ‘druglikeness’ for each ligand. For more info on each category see the help pages.

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Hydrogen bond acceptors 3
Hydrogen bond donors 1
Rotatable bonds 1
Topological polar surface area 54.37
Molecular weight 342.22
XLogP 3.31
No. Lipinski's rules broken 0
SMILES / InChI / InChIKey
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SMILES / InChI / InChIKey

SMILES (Simplified Molecular Input Line Entry Specification) A specification for unambiguously describing the structure of chemical molecules using short ASCII strings. Canonical SMILES specify a unique representation of the 2D structure without chiral or isotopic specifications. Isomeric SMILES include chiral specification and isotopes.

Standard InChI (IUPAC International Chemical Identifier) and InChIKey InChI is a non-proprietary, standard, textual identifier for chemical substances designed to facilitate linking of information and database searching. An InChIKey is a simplified version of a full InChI, designed for easier web searching.

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Canonical SMILES O=C1CCC2(C(=C1)C(=CC1C2CCC2(C1CCC2(O)C(=O)C)C)C)C
Isomeric SMILES O=C1CC[C@]2(C(=C1)C(=C[C@@H]1[C@@H]2CC[C@]2([C@H]1CC[C@]2(O)C(=O)C)C)C)C
InChI InChI=1S/C22H30O3/c1-13-11-16-17(20(3)8-5-15(24)12-19(13)20)6-9-21(4)18(16)7-10-22(21,25)14(2)23/h11-12,16-18,25H,5-10H2,1-4H3/t16-,17+,18+,20-,21+,22+/m1/s1
InChI Key VXIMPSPISRVBPZ-NWUMPJBXSA-N
Bioactivity Comments
The only bioactivity data available appears to be DRUGMATRIX radioligand binding (on ChEMBL) for megestrol acetate vs. the bovine progesterone receptor, which gives an IC50 of 11nM.