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enzymes (1)
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Identification
Name Methaqualone
Accession Number DB04833
Type small molecule
Groups illicit, withdrawn
Description

Methaqualone is a sedative-hypnotic drug that is similar in effect to barbiturates, a general central nervous system depressant. The sedative-hypnotic activity was first noted by Indian researchers in the 1950s and in 1962 methaqualone itself was patented in the US by Wallace and Tiernan. Its use peaked in the early 1970s as a hypnotic, for the treatment of insomnia, and as a sedative and muscle relaxant. It has also been used illegally as a recreational drug, commonly known as Quaaludes, Sopors, Ludes or Mandrax (particularly in the 1970s in North America) depending on the manufacturer. Since at least 2001, it has been widely used in South Africa, where it is commonly referred to as “smarties” or “geluk-tablette” (meaning happy tablets). Clandestinely produced methaqualone is still seized by government agencies and police forces around the world. [Wikipedia]

Structure Thumb
Download: MOL | SDF | SMILES | InChI
Display: 2D Structure | 3D Structure
Synonyms Not Available
Salts Not Available
Brand names
Name Company
Quaalude Rorer
Brand mixtures Not Available
Categories
  • Hypnotics and Sedatives
CAS number 72-44-6
Weight Average: 250.2952
Monoisotopic: 250.11061308
Chemical Formula C16H14N2O
InChI Key InChIKey=JEYCTXHKTXCGPB-UHFFFAOYSA-N
InChI
InChI=1S/C16H14N2O/c1-11-7-3-6-10-15(11)18-12(2)17-14-9-5-4-8-13(14)16(18)19/h3-10H,1-2H3
Plain Text
IUPAC Name
2-methyl-3-(2-methylphenyl)-3,4-dihydroquinazolin-4-one
SMILES
CC1=CC=CC=C1N1C(C)=NC2=CC=CC=C2C1=O
Plain Text
Mass Spec Not Available
Taxonomy
Kingdom Not Available
Classes Not Available
Substructures Not Available
Pharmacology
Indication For the treatment of insomnia, and as a sedative and muscle relaxant.
Pharmacodynamics Not Available
Mechanism of action Not Available
Absorption Not Available
Volume of distribution Not Available
Protein binding Not Available
Metabolism Not Available
Route of elimination Not Available
Half life Not Available
Clearance Not Available
Toxicity Symptoms of overdose include delirium, convulsions, muscle spasms or seizure, cardiac arrest, shortness or loss of breath, vomiting or nausea, and coma or death. The LD50 for mice is 1250 mg/kg and for rats is 326 mg/kg (Strasenburg Labs).
Affected organisms
  • Humans and other mammals
Pathways Not Available
Pharmacoeconomics
Manufacturers Not Available
Packagers Not Available
Dosage forms Not Available
Prices Not Available
Patents Not Available
Properties
State solid
Experimental Properties
Property Value Source
melting point 120 °C PhysProp
Predicted Properties
Property Value Source
water solubility 4.07e-02 g/l ALOGPS
logP 2.54 ALOGPS
logP 3.17 ChemAxon
logS -3.8 ALOGPS
pKa (strongest basic) -1.2 ChemAxon
physiological charge 0 ChemAxon
hydrogen acceptor count 2 ChemAxon
hydrogen donor count 0 ChemAxon
polar surface area 32.67 ChemAxon
rotatable bond count 0 ChemAxon
refractivity 77.11 ChemAxon
polarizability 27.32 ChemAxon
References
Synthesis Reference

Potential Analgesics. Part I. Synthesis of substituted 4-quinazolones, I. K. Kacker and S. H. Zaheer, J. Ind. Chem. Soc. 28 (1951), pp. 344–346.

General Reference Not Available
External Links
Resource Link
KEGG Drug D00557 Link_out
KEGG Compound C07560 Link_out
PubChem Compound 6292 Link_out
PubChem Substance 46507178 Link_out
ChemSpider 6055 Link_out
BindingDB 50089081 Link_out
Drug Product Database 2243257 Link_out
Wikipedia http://en.wikipedia.org/wiki/Methaqualone Link_out
ATC Codes
  • N05CM01
AHFS Codes Not Available
PDB Entries Not Available
FDA label Not Available
MSDS Not Available
Interactions
Drug Interactions Not Available
Food Interactions Not Available
Enzymes

1. Cytochrome P450 3A4

Actions: substrate

Cytochromes P450 are a group of heme-thiolate monooxygenases. In liver microsomes, this enzyme is involved in an NADPH-dependent electron transport pathway. It performs a variety of oxidation reactions (e.g. caffeine 8-oxidation, omeprazole sulphoxidation, midazolam 1'-hydroxylation and midazolam 4- hydroxylation) of structurally unrelated compounds, including steroids, fatty acids, and xenobiotics. The enzyme also hydroxylates etoposide

UniProt ID: P08684 Link_out
Gene: CYP3A4
Protein Sequence: FASTA
Gene Sequence: FASTA
SNPs: SNPJam Report Link_out

References:
  1. Preissner S, Kroll K, Dunkel M, Senger C, Goldsobel G, Kuzman D, Guenther S, Winnenburg R, Schroeder M, Preissner R: SuperCYP: a comprehensive database on Cytochrome P450 enzymes including a tool for analysis of CYP-drug interactions. Nucleic Acids Res. 2010 Jan;38(Database issue):D237-43. Epub 2009 Nov 24. Pubmed

Comments
Drug created on September 11, 2007 15:07 / Updated on February 08, 2013 16:23