Lormetazepam
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Basic Info
| Common Name | Lormetazepam(F05465) |
| 2D Structure | |
| Description | Lormetazepam (INN, or methyl-lorazepam, is a drug which is a short to intermediate acting 3-hydroxy benzodiazepine derivative. It possesses hypnotic, anxiolytic, anticonvulsant, sedative and skeletal muscle relaxant properties. Lormetazepam is considered a hypnotic benzodiazepine and is officially indicated for moderate to severe insomnia. Lormetazepam is a short-acting benzodiazepine and is sometimes used in patients who have difficulty in maintaining sleep or falling asleep. Hypnotics should only be used on a short-term basis or, in those with chronic insomnia, on an occasional basis. |
| FRCD ID | F05465 |
| CAS Number | 848-75-9 |
| PubChem CID | 13314 |
| Formula | C16H12Cl2N2O2 |
| IUPAC Name | 7-chloro-5-(2-chlorophenyl)-3-hydroxy-1-methyl-3H-1,4-benzodiazepin-2-one |
| InChI Key | FJIKWRGCXUCUIG-UHFFFAOYSA-N |
| InChI | InChI=1S/C16H12Cl2N2O2/c1-20-13-7-6-9(17)8-11(13)14(19-15(21)16(20)22)10-4-2-3-5-12(10)18/h2-8,15,21H,1H3 |
| Canonical SMILES | CN1C2=C(C=C(C=C2)Cl)C(=NC(C1=O)O)C3=CC=CC=C3Cl |
| Isomeric SMILES | CN1C2=C(C=C(C=C2)Cl)C(=NC(C1=O)O)C3=CC=CC=C3Cl |
| Wikipedia | Lormetazepam |
| Synonyms |
N-Methyllorazepam
Lormetazepam
Methyllorazepam
Noctamid
Loramet
Lormetazepamum
Chlorotemazepam
Ergocalm
Noctamide
848-75-9
|
| Classifies |
Predicted: Illegal Additives
|
| Update Date | Nov 13, 2018 17:07 |
Chemical Taxonomy
| Kingdom | Organic compounds |
| Superclass | Organoheterocyclic compounds |
| Class | Benzodiazepines |
| Subclass | 1,4-benzodiazepines |
| Intermediate Tree Nodes | Not available |
| Direct Parent | 1,4-benzodiazepines |
| Alternative Parents | |
| Molecular Framework | Aromatic heteropolycyclic compounds |
| Substituents | 1,4-benzodiazepine - Alpha-amino acid or derivatives - Chlorobenzene - Halobenzene - Aryl chloride - Aryl halide - Monocyclic benzene moiety - Benzenoid - Tertiary carboxylic acid amide - Carboxamide group - Ketimine - Lactam - Alkanolamine - Carboxylic acid derivative - Azacycle - Organic 1,3-dipolar compound - Propargyl-type 1,3-dipolar organic compound - Imine - Organic oxygen compound - Organic nitrogen compound - Hydrocarbon derivative - Carbonyl group - Organic oxide - Organopnictogen compound - Organooxygen compound - Organohalogen compound - Organochloride - Organonitrogen compound - Aromatic heteropolycyclic compound |
| Description | This compound belongs to the class of organic compounds known as 1,4-benzodiazepines. These are organic compounds containing a benzene ring fused to a 1,4-azepine. |
Properties
| Property Name | Property Value |
|---|---|
| Molecular Weight | 335.184 |
| Hydrogen Bond Donor Count | 1 |
| Hydrogen Bond Acceptor Count | 3 |
| Rotatable Bond Count | 1 |
| Complexity | 471 |
| Monoisotopic Mass | 334.028 |
| Exact Mass | 334.028 |
| XLogP | 2.4 |
| Formal Charge | 0 |
| Heavy Atom Count | 22 |
| Defined Atom Stereocenter Count | 0 |
| Undefined Atom Stereocenter Count | 1 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
| Isotope Atom Count | 0 |
| Covalently-Bonded Unit Count | 1 |
ADMET
| Model | Result | Probability |
|---|---|---|
| Absorption | ||
| Blood-Brain Barrier | BBB+ | 0.9745 |
| Human Intestinal Absorption | HIA+ | 0.9913 |
| Caco-2 Permeability | Caco2+ | 0.7979 |
| P-glycoprotein Substrate | Non-substrate | 0.5500 |
| P-glycoprotein Inhibitor | Non-inhibitor | 0.7388 |
| Inhibitor | 0.5460 | |
| Renal Organic Cation Transporter | Non-inhibitor | 0.7776 |
| Distribution | ||
| Subcellular localization | Mitochondria | 0.6217 |
| Metabolism | ||
| CYP450 2C9 Substrate | Non-substrate | 0.6281 |
| CYP450 2D6 Substrate | Non-substrate | 0.9116 |
| CYP450 3A4 Substrate | Substrate | 0.6962 |
| CYP450 1A2 Inhibitor | Inhibitor | 0.5916 |
| CYP450 2C9 Inhibitor | Non-inhibitor | 0.5454 |
| CYP450 2D6 Inhibitor | Non-inhibitor | 0.8910 |
| CYP450 2C19 Inhibitor | Non-inhibitor | 0.5615 |
| CYP450 3A4 Inhibitor | Non-inhibitor | 0.6014 |
| CYP Inhibitory Promiscuity | Low CYP Inhibitory Promiscuity | 0.6494 |
| Excretion | ||
| Toxicity | ||
| Human Ether-a-go-go-Related Gene Inhibition | Weak inhibitor | 0.9987 |
| Non-inhibitor | 0.8308 | |
| AMES Toxicity | Non AMES toxic | 0.7974 |
| Carcinogens | Non-carcinogens | 0.8093 |
| Fish Toxicity | High FHMT | 0.8511 |
| Tetrahymena Pyriformis Toxicity | High TPT | 0.9339 |
| Honey Bee Toxicity | Low HBT | 0.8819 |
| Biodegradation | Not ready biodegradable | 1.0000 |
| Acute Oral Toxicity | III | 0.8144 |
| Carcinogenicity (Three-class) | Non-required | 0.6480 |
| Model | Value | Unit |
|---|---|---|
| Absorption | ||
| Aqueous solubility | -3.9287 | LogS |
| Caco-2 Permeability | 1.7368 | LogPapp, cm/s |
| Distribution | ||
| Metabolism | ||
| Excretion | ||
| Toxicity | ||
| Rat Acute Toxicity | 2.0888 | LD50, mol/kg |
| Fish Toxicity | 1.3830 | pLC50, mg/L |
| Tetrahymena Pyriformis Toxicity | 0.7141 | pIGC50, ug/L |
Targets
- General Function:
- Inhibitory extracellular ligand-gated ion channel activity
- Specific Function:
- GABA, the major inhibitory neurotransmitter in the vertebrate brain, mediates neuronal inhibition by binding to the GABA/benzodiazepine receptor and opening an integral chloride channel.
- Gene Name:
- GABRA2
- Uniprot ID:
- P47869
- Molecular Weight:
- 51325.85 Da
References
- Iorio LC, Barnett A, Billard W: Selective affinity of 1-N-trifluoroethyl benzodiazepines for cerebellar type 1 receptor sites. Life Sci. 1984 Jul 2;35(1):105-13. [6738302 ]
- General Function:
- Inhibitory extracellular ligand-gated ion channel activity
- Specific Function:
- GABA, the major inhibitory neurotransmitter in the vertebrate brain, mediates neuronal inhibition by binding to the GABA/benzodiazepine receptor and opening an integral chloride channel.
- Gene Name:
- GABRA3
- Uniprot ID:
- P34903
- Molecular Weight:
- 55164.055 Da
References
- Iorio LC, Barnett A, Billard W: Selective affinity of 1-N-trifluoroethyl benzodiazepines for cerebellar type 1 receptor sites. Life Sci. 1984 Jul 2;35(1):105-13. [6738302 ]
- General Function:
- Transporter activity
- Specific Function:
- GABA, the major inhibitory neurotransmitter in the vertebrate brain, mediates neuronal inhibition by binding to the GABA/benzodiazepine receptor and opening an integral chloride channel.
- Gene Name:
- GABRA5
- Uniprot ID:
- P31644
- Molecular Weight:
- 52145.645 Da
References
- Iorio LC, Barnett A, Billard W: Selective affinity of 1-N-trifluoroethyl benzodiazepines for cerebellar type 1 receptor sites. Life Sci. 1984 Jul 2;35(1):105-13. [6738302 ]
- General Function:
- Inhibitory extracellular ligand-gated ion channel activity
- Specific Function:
- Component of the heteropentameric receptor for GABA, the major inhibitory neurotransmitter in the vertebrate brain. Functions also as histamine receptor and mediates cellular responses to histamine. Functions as receptor for diazepines and various anesthetics, such as pentobarbital; these are bound at a separate allosteric effector binding site. Functions as ligand-gated chloride channel.
- Gene Name:
- GABRB2
- Uniprot ID:
- P47870
- Molecular Weight:
- 59149.895 Da
References
- Iorio LC, Barnett A, Billard W: Selective affinity of 1-N-trifluoroethyl benzodiazepines for cerebellar type 1 receptor sites. Life Sci. 1984 Jul 2;35(1):105-13. [6738302 ]
- General Function:
- Gaba-gated chloride ion channel activity
- Specific Function:
- Component of the heteropentameric receptor for GABA, the major inhibitory neurotransmitter in the vertebrate brain. Functions also as histamine receptor and mediates cellular responses to histamine. Functions as receptor for diazepines and various anesthetics, such as pentobarbital; these are bound at a separate allosteric effector binding site. Functions as ligand-gated chloride channel.
- Gene Name:
- GABRB3
- Uniprot ID:
- P28472
- Molecular Weight:
- 54115.04 Da
References
- Iorio LC, Barnett A, Billard W: Selective affinity of 1-N-trifluoroethyl benzodiazepines for cerebellar type 1 receptor sites. Life Sci. 1984 Jul 2;35(1):105-13. [6738302 ]
- General Function:
- Gaba-a receptor activity
- Specific Function:
- GABA, the major inhibitory neurotransmitter in the vertebrate brain, mediates neuronal inhibition by binding to the GABA/benzodiazepine receptor and opening an integral chloride channel.
- Gene Name:
- GABRD
- Uniprot ID:
- O14764
- Molecular Weight:
- 50707.835 Da
References
- Iorio LC, Barnett A, Billard W: Selective affinity of 1-N-trifluoroethyl benzodiazepines for cerebellar type 1 receptor sites. Life Sci. 1984 Jul 2;35(1):105-13. [6738302 ]
- General Function:
- Inhibitory extracellular ligand-gated ion channel activity
- Specific Function:
- GABA, the major inhibitory neurotransmitter in the vertebrate brain, mediates neuronal inhibition by binding to the GABA/benzodiazepine receptor and opening an integral chloride channel.
- Gene Name:
- GABRE
- Uniprot ID:
- P78334
- Molecular Weight:
- 57971.175 Da
References
- Iorio LC, Barnett A, Billard W: Selective affinity of 1-N-trifluoroethyl benzodiazepines for cerebellar type 1 receptor sites. Life Sci. 1984 Jul 2;35(1):105-13. [6738302 ]
- General Function:
- Inhibitory extracellular ligand-gated ion channel activity
- Specific Function:
- GABA, the major inhibitory neurotransmitter in the vertebrate brain, mediates neuronal inhibition by binding to the GABA/benzodiazepine receptor and opening an integral chloride channel.
- Gene Name:
- GABRG1
- Uniprot ID:
- Q8N1C3
- Molecular Weight:
- 53594.49 Da
References
- Iorio LC, Barnett A, Billard W: Selective affinity of 1-N-trifluoroethyl benzodiazepines for cerebellar type 1 receptor sites. Life Sci. 1984 Jul 2;35(1):105-13. [6738302 ]
- General Function:
- Inhibitory extracellular ligand-gated ion channel activity
- Specific Function:
- GABA, the major inhibitory neurotransmitter in the vertebrate brain, mediates neuronal inhibition by binding to the GABA/benzodiazepine receptor and opening an integral chloride channel.
- Gene Name:
- GABRG3
- Uniprot ID:
- Q99928
- Molecular Weight:
- 54288.16 Da
References
- Iorio LC, Barnett A, Billard W: Selective affinity of 1-N-trifluoroethyl benzodiazepines for cerebellar type 1 receptor sites. Life Sci. 1984 Jul 2;35(1):105-13. [6738302 ]
- General Function:
- Gaba-a receptor activity
- Specific Function:
- GABA, the major inhibitory neurotransmitter in the vertebrate brain, mediates neuronal inhibition by binding to the GABA/benzodiazepine receptor and opening an integral chloride channel. In the uterus, the function of the receptor appears to be related to tissue contractility. The binding of this pI subunit with other GABA(A) receptor subunits alters the sensitivity of recombinant receptors to modulatory agents such as pregnanolone.
- Gene Name:
- GABRP
- Uniprot ID:
- O00591
- Molecular Weight:
- 50639.735 Da
References
- Iorio LC, Barnett A, Billard W: Selective affinity of 1-N-trifluoroethyl benzodiazepines for cerebellar type 1 receptor sites. Life Sci. 1984 Jul 2;35(1):105-13. [6738302 ]
- General Function:
- Gaba-a receptor activity
- Specific Function:
- GABA, the major inhibitory neurotransmitter in the vertebrate brain, mediates neuronal inhibition by binding to the GABA/benzodiazepine receptor and opening an integral chloride channel. Rho-1 GABA receptor could play a role in retinal neurotransmission.
- Gene Name:
- GABRR1
- Uniprot ID:
- P24046
- Molecular Weight:
- 55882.91 Da
References
- Iorio LC, Barnett A, Billard W: Selective affinity of 1-N-trifluoroethyl benzodiazepines for cerebellar type 1 receptor sites. Life Sci. 1984 Jul 2;35(1):105-13. [6738302 ]
- General Function:
- Gaba-a receptor activity
- Specific Function:
- GABA, the major inhibitory neurotransmitter in the vertebrate brain, mediates neuronal inhibition by binding to the GABA/benzodiazepine receptor and opening an integral chloride channel. Rho-2 GABA receptor could play a role in retinal neurotransmission.
- Gene Name:
- GABRR2
- Uniprot ID:
- P28476
- Molecular Weight:
- 54150.41 Da
References
- Iorio LC, Barnett A, Billard W: Selective affinity of 1-N-trifluoroethyl benzodiazepines for cerebellar type 1 receptor sites. Life Sci. 1984 Jul 2;35(1):105-13. [6738302 ]
- General Function:
- Gaba-a receptor activity
- Specific Function:
- GABA, the major inhibitory neurotransmitter in the vertebrate brain, mediates neuronal inhibition by binding to the GABA/benzodiazepine receptor and opening an integral chloride channel.
- Gene Name:
- GABRR3
- Uniprot ID:
- A8MPY1
- Molecular Weight:
- 54271.1 Da
References
- Iorio LC, Barnett A, Billard W: Selective affinity of 1-N-trifluoroethyl benzodiazepines for cerebellar type 1 receptor sites. Life Sci. 1984 Jul 2;35(1):105-13. [6738302 ]
- General Function:
- Cholesterol binding
- Specific Function:
- Can bind protoporphyrin IX and may play a role in the transport of porphyrins and heme (By similarity). Promotes the transport of cholesterol across mitochondrial membranes and may play a role in lipid metabolism (PubMed:24814875), but its precise physiological role is controversial. It is apparently not required for steroid hormone biosynthesis. Was initially identified as peripheral-type benzodiazepine receptor; can also bind isoquinoline carboxamides (PubMed:1847678).
- Gene Name:
- TSPO
- Uniprot ID:
- P30536
- Molecular Weight:
- 18827.81 Da
References
- Overington JP, Al-Lazikani B, Hopkins AL: How many drug targets are there? Nat Rev Drug Discov. 2006 Dec;5(12):993-6. [17139284 ]
- General Function:
- Inhibitory extracellular ligand-gated ion channel activity
- Specific Function:
- Component of the heteropentameric receptor for GABA, the major inhibitory neurotransmitter in the vertebrate brain. Functions also as histamine receptor and mediates cellular responses to histamine. Functions as receptor for diazepines and various anesthetics, such as pentobarbital; these are bound at a separate allosteric effector binding site. Functions as ligand-gated chloride channel.
- Gene Name:
- GABRG2
- Uniprot ID:
- P18507
- Molecular Weight:
- 54161.78 Da
References
- Iorio LC, Barnett A, Billard W: Selective affinity of 1-N-trifluoroethyl benzodiazepines for cerebellar type 1 receptor sites. Life Sci. 1984 Jul 2;35(1):105-13. [6738302 ]
- General Function:
- Inhibitory extracellular ligand-gated ion channel activity
- Specific Function:
- Component of the heteropentameric receptor for GABA, the major inhibitory neurotransmitter in the vertebrate brain. Functions also as histamine receptor and mediates cellular responses to histamine. Functions as receptor for diazepines and various anesthetics, such as pentobarbital; these are bound at a separate allosteric effector binding site. Functions as ligand-gated chloride channel (By similarity).
- Gene Name:
- GABRA1
- Uniprot ID:
- P14867
- Molecular Weight:
- 51801.395 Da
References
- Overington JP, Al-Lazikani B, Hopkins AL: How many drug targets are there? Nat Rev Drug Discov. 2006 Dec;5(12):993-6. [17139284 ]
- General Function:
- Ligand-gated ion channel activity
- Specific Function:
- Component of the heteropentameric receptor for GABA, the major inhibitory neurotransmitter in the vertebrate brain. Functions also as histamine receptor and mediates cellular responses to histamine. Functions as receptor for diazepines and various anesthetics, such as pentobarbital; these are bound at a separate allosteric effector binding site. Functions as ligand-gated chloride channel (By similarity).
- Gene Name:
- GABRB1
- Uniprot ID:
- P18505
- Molecular Weight:
- 54234.085 Da
References
- Iorio LC, Barnett A, Billard W: Selective affinity of 1-N-trifluoroethyl benzodiazepines for cerebellar type 1 receptor sites. Life Sci. 1984 Jul 2;35(1):105-13. [6738302 ]