methicillin   Click here for help

GtoPdb Ligand ID: 12264

Synonyms: meticillin
Approved drug PDB Ligand
methicillin is an approved drug (FDA (1971))
Compound class: Synthetic organic
Comment: Methicillin/meticillin, is a narrow-spectrum β-lactam antimicrobial compound that was discovered in 1960.
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 6
Hydrogen bond donors 2
Rotatable bonds 6
Topological polar surface area 130.47
Molecular weight 380.1
XLogP 1.51
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 COc1cccc(c1C(=O)N[C@@H]1C(=O)N2[C@@H]1SC([C@@H]2C(=O)O)(C)C)OC
Isomeric SMILES CC1([C@@H](N2[C@H](S1)[C@@H](C2=O)NC(=O)c1c(cccc1OC)OC)C(=O)O)C
InChI InChI=1S/C17H20N2O6S/c1-17(2)12(16(22)23)19-14(21)11(15(19)26-17)18-13(20)10-8(24-3)6-5-7-9(10)25-4/h5-7,11-12,15H,1-4H3,(H,18,20)(H,22,23)/t11-,12+,15-/m1/s1
InChI Key RJQXTJLFIWVMTO-TYNCELHUSA-N
No information available.
Summary of Clinical Use Click here for help
Due to the development of antimicrobial resistance methicillin is no longer effective against many of the organisms for which it was originally prescribed. Its use in humans has largely been replaced by oxacillin.