Metralindole - Misplaced Pages

Chemical compound Pharmaceutical compound

Metralindole
Clinical data

Routes of administration	Oral
ATC code	none
Legal status
Legal status	In general: ℞ (Prescription only)
Identifiers
IUPAC name 2,4,5,6-tetrahydro-9-methoxy-4-methyl-1H-3,4,6a-triazafluoranthene
CAS Number	54188-38-4 HCl: 53734-79-5
PubChem CID	68713
ChemSpider	61964
UNII	2QW3FL6OPA HCl: M15TM76Y3L
CompTox Dashboard (EPA)	DTXSID0045705
Chemical and physical data
Formula	C₁₅H₁₇N₃O
Molar mass	255.321 g·mol
3D model (JSmol)	Interactive image
SMILES CN1CCN2C3=C(C=C(C=C3)OC)C4=C2C1=NCC4

Metralindole (Inkazan) is a reversible inhibitor of monoamine oxidase A (RIMA) which was investigated in Russia as a potential antidepressant. It is structurally and pharmacologically related to pirlindole.

References

Andreeva NI, Golovina SM, Faermark MF, Shvarts GI, Mashkovskiĭ MD (1991). "". Farmakologiia i Toksikologiia (in Russian). 54 (2): 38–40. PMID 1884793.

Antidepressants (N06A)

Specific reuptake inhibitors and/or receptor modulators

SSRIsTooltip Selective serotonin reuptake inhibitors	Citalopram Escitalopram Fluoxetine Fluvoxamine Indalpine Paroxetine Sertraline Zimelidine
SNRIsTooltip Serotonin–norepinephrine reuptake inhibitors	Desvenlafaxine Duloxetine Levomilnacipran Milnacipran Tofenacin Venlafaxine
NRIsTooltip Norepinephrine reuptake inhibitors	Atomoxetine Reboxetine Viloxazine
NDRIsTooltip Norepinephrine–dopamine reuptake inhibitors	Amineptine Bupropion Nomifensine
NaSSAsTooltip Noradrenergic and specific serotonergic antidepressants	Mianserin Mirtazapine Setiptiline
SARIsTooltip Serotonin antagonist and reuptake inhibitors	Etoperidone Nefazodone Trazodone
SMSTooltip Serotonin modulator and stimulators	Vilazodone Vortioxetine
Others	Agomelatine Amisulpride Dextromethorphan/bupropion Esketamine Etryptamine Gepirone Indeloxazine Flupentixol Ketamine Medifoxamine Metryptamine Oxaflozane Pivagabine Tandospirone Teniloxazine Tianeptine

Tricyclic and tetracyclic antidepressants

TCAsTooltip Tricyclic antidepressants	Amineptine Amitriptyline Amitriptylinoxide Amoxapine Butriptyline Clomipramine Demexiptiline Desipramine Dibenzepin Dimetacrine Dosulepin Doxepin Imipramine Imipraminoxide Iprindole Lofepramine Melitracen Metapramine Nitroxazepine Nortriptyline Noxiptiline Opipramol Pipofezine Propizepine Protriptyline Quinupramine Tianeptine Trimipramine
TeCAsTooltip Tetracyclic antidepressants	Maprotiline Mianserin Mirtazapine Setiptiline
Others	Tiazesim

Monoamine oxidase inhibitors

Non-selective

Reversible: Caroxazone

Mixed: Bifemelane

MAO_ATooltip Monoamine oxidase A-selective

MAO_BTooltip Monoamine oxidase B-selective

Irreversible: Selegiline

Adjunctive therapies
Atypical antipsychotics (aripiprazole, brexpiprazole, lurasidone, olanzapine, quetiapine, risperidone) Buspirone Lithium (lithium carbonate, lithium citrate) Thyroid hormones (triiodothyronine (T₃), levothyroxine (T₄))

Miscellaneous
Ademetionine (SAMe) GABAkine neurosteroids (brexanolone, zuranolone) Hypericum perforatum (St. John's Wort) Oxitriptan (5-HTP) Rubidium chloride (RbCl) Tryptophan

WHO-EM
Withdrawn from market
Clinical trials:
- Phase III
- Never to phase III

v t e Anxiolytics (N05B)
5-HT_1ARTooltip 5-HT1A receptor agonists	Buspirone Gepirone Tandospirone
GABA_ARTooltip GABAA receptor PAMsTooltip positive allosteric modulators	Benzodiazepines: Adinazolam Alprazolam Bromazepam Camazepam Chlordiazepoxide Clobazam Clonazepam Clorazepate Clotiazepam Cloxazolam Diazepam Ethyl loflazepate Etizolam Fludiazepam Halazepam Ketazolam Lorazepam Medazepam Nordazepam Oxazepam Pinazepam Prazepam; Others: Alpidem Barbiturates (e.g., phenobarbital) Carbamates (e.g., meprobamate) Carisoprodol Chlormezanone Ethanol (alcohol) Etifoxine
Hypnotics	Zopiclone
Gabapentinoids (α₂δ VDCC blockers)	Gabapentin Gabapentin enacarbil Phenibut Pregabalin
Antidepressants	SSRIsTooltip Selective serotonin reuptake inhibitors (e.g., escitalopram) SNRIsTooltip Serotonin-norepinephrine reuptake inhibitors (e.g., duloxetine) SARIsTooltip Serotonin antagonist and reuptake inhibitors (e.g., trazodone) TCAsTooltip Tricyclic antidepressants (e.g., clomipramine) TeCAsTooltip Tetracyclic antidepressants (e.g., mirtazapine) MAOIsTooltip Monoamine oxidase inhibitors (e.g., phenelzine); Others: Agomelatine Bupropion Tianeptine Vilazodone Vortioxetine
Antipsychotics	Quetiapine Flupentixol
Sympatholytics (Antiadrenergics)	Alpha-1 blockers (e.g., prazosin) Alpha-2 agonists (e.g., clonidine, dexmedetomidine, guanfacine) Beta blockers (e.g., propranolol)
Others	Benzoctamine Cycloserine Fabomotizole Hydroxyzine Lorpiprazole Mebicar Mepiprazole Nicotine Opipramol Oxaflozane Phenaglycodol Phenibut Picamilon Selank Tiagabine Tofisopam Validolum
WHO-EM Withdrawn from market Clinical trials: Phase III Never to phase III

Monoamine metabolism modulators

Non-specific

AAADTooltip Aromatic L-amino acid decarboxylase

Substrates→Products: L-DOPA (levodopa)→Dopamine
5-HTP→Serotonin
L-Histidine→Histamine
Phenylalanine→Phenethylamine
L-Tyrosine→Tyramine
Tryptophan→Tryptamine

MAOTooltip Monoamine oxidase

Substrates→Products (with ALDHTooltip Aldehyde dehydrogenase/ALRTooltip ALR): Epinephrine (adrenaline)→DHMA
Metanephrine→MHPG/VMA
Norepinephrine (noradrenaline)→DHMA
Normetanephrine→MHPG/VMA
Dopamine→DOPAC
3-Methoxytyramine→HVA
Serotonin→5-HIAA

Inhibitors: Non-selective: Benmoxin
Caroxazone
Echinopsidine
Furazolidone
Guineesine
Hydralazine
Indantadol
Iproclozide
Iproniazid
Isocarboxazid
Isoniazid
Linezolid
Mebanazine
Metfendrazine
Nialamide
Octamoxin
Paraxazone
Phenelzine
Pheniprazine
Phenoxypropazine
Pivhydrazine
Procarbazine
Safrazine
Tranylcypromine

Inhibitors: MAO-A-selective: Amiflamine
Bazinaprine
Befloxatone
Brofaromine
Cimoxatone
Clorgiline
CX157 (Tyrima)
Eprobemide
Esuprone
Harmala alkaloids (e.g., harmine, harmaline, harman, norharman, tetrahydroharmine)
Methylene blue
Metralindole
Minaprine
Moclobemide
Pirlindole
Sercloremine
Tetrindole
Toloxatone

Inhibitors: MAO-B selective: Adarigiline
Almoxatone
D-Deprenyl
Desmethylselegiline
Ethanol
Ladostigil
Lazabemide
Milacemide
Mofegiline
Nicotine
Pargyline
Rasagiline
Safinamide
Selegiline (L-Deprenyl)
Sembragiline
Tisolagiline
Vafidemstat

Phenethylamines
(dopamine, epinephrine,
norepinephrine)

PAHTooltip Phenylalanine hydroxylase	Substrates→Products: Phenylalanine→Tyrosine Inhibitors: 3,4-Dihydroxystyrene α-Methylphenylalanine
THTooltip Tyrosine hydroxylase	Substrates→Products: Tyrosine→L-DOPA (levodopa) Inhibitors: 2-Hydroxyestradiol 2-Hydroxyestrone 3-Iodotyrosine α-Methyl-5-hydroxytryptophan (α-Me-5-HTP) α-Methylphenylalanine Aquayamycin Bulbocapnine Methyldopa (α-methyl-L-DOPA) Metirosine (α-methyl-p-tyrosine) Oudenone
DBHTooltip Dopamine beta-hydroxylase	Substrates→Products: Dopamine→Norepinephrine (Noradrenaline) Inhibitors: Bupicomide Disulfiram Dopastin Etamicastat Fusaric acid Nepicastat Phenopicolinic acid Tropolone Zamicastat
PNMTTooltip Phenylethanolamine N-methyltransferase	Substrates→Products: Norepinephrine (noradrenaline)→Epinephrine (adrenaline) Inhibitors: CGS-19281A SKF-64139 SKF-7698
COMTTooltip Catechol-O-methyl transferase	Substrates→Products: Dopamine→3-Methoxytyramine DOPAC→Homovanillic acid Norepinephrine→Normetanephrine Epinephrine→Metanephrine DOPEG→MOPEG DOMA→VMA 2-Hydroxyestradiol→2-Methoxyestradiol 2-Hydroxyestrone→2-Methoxyestrone 4-Hydroxyestradiol→4-Methoxyestradiol 4-Hydroxyestrone→4-Methoxyestrone Inhibitors: 2-Hydroxyestradiol 2-Hydroxyestrone Entacapone Nebicapone Neluxicapone Nitecapone Opicapone Quinalizarin Tolcapone

Tryptamines
(serotonin, melatonin)

TPHTooltip Tryptophan hydroxylase

Substrates→Products: Tryptophan→5-HTP

AANATTooltip Serotonin N-acetyl transferase

Substrates→Products: Serotonin→N-Acetylserotonin

ASMTTooltip Acetylserotonin O-methyltransferase

Substrates→Products: N-Acetylserotonin→Melatonin

Histamine

HDCTooltip Histidine decarboxylase

Substrates→Products: L-Histidine→Histamine

HNMTTooltip Histamine N-methyltransferase

Substrates→Products: Histamine→N-Methylhistamine

DAOTooltip Diamine oxidase

Substrates→Products: Histamine→Imidazole acetic acid

Inhibitors: Pimagedine (aminoguanidine)

See also: Receptor/signaling modulators • Adrenergics • Dopaminergics • Melatonergics • Serotonergics • Monoamine reuptake inhibitors • Monoamine releasing agents • Monoamine neurotoxins

v t e Tryptamines
Tryptamines	1-Methyl-T 1-Methylpsilocin 2-HO-NMT 2-Me-DET 2-Methyl-5-HT 2,N,N-TMT 4,5-DHP-DMT 4-AcO-DALT 4-AcO-DET 4-AcO-DiPT 4-AcO-DPT 4-AcO-EPT 4-AcO-MALT 4-AcO-MET 4-AcO-MiPT 4-AcO-NMT 4-AcO-TMT 4-F-5-MeO-DMT 4-Fluoro-T 4-HO-5-MeO-DMT 4-HO-DALT 4-HO-DBT 4-HO-DET 4-HO-DiPT 4-HO-DPT 4-HO-DSBT 4-HO-EPT 4-HO-MALT 4-HO-MET 4-HO-McPT 4-HO-McPeT 4-HO-MiPT 4-HO-MPT 4-HO-MsBT 4-HO-NALT 4-HO-NMT 4-HO-PiPT 4-HO-pyr-T 4-HO-TMT 4-HT 4-MeO-DiPT 4-MeO-DMT 4-MeO-MiPT 4-MeO-T 4-PrO-DMT 4,5-MDO-DMT 4,5-MDO-DiPT 5-BT 5-Bromo-DMT 5-Bromo-T 5-Chloro-DMT 5-Chloro-T 5-CT 5-Ethoxy-DMT 5-Ethyl-DMT 5-Fluoro-DET 5-Fluoro-DMT 5-Fluoro-EPT 5-Fluoro-MET 5-Fluoro-T 5-HO-DiPT 5-HTP (oxitriptan) 5-MeO-2-TMT 5-MeO-34MPEMT 5-MeO-7,N,N-TMT 5-MeO-DALT 5-MeO-DBT 5-MeO-DET 5-MeO-DiPT 5-MeO-DMT 5-MeO-DPT 5-MeO-EiPT 5-MeO-EPT 5-MeO-MALT 5-MeO-MET 5-MeO-MiPT 5-MeO-NET 5-MeO-NiPT 5-MeO-NMT 5-MeO-pyr-T 5-MeO-NBpBrT 5-MeO-T (5-MT; mexamine) 5-MeO-T-NBOMe 5-MeS-DMT 5-Methyl-DMT 5-Methyl-T 5-MT-NB3OMe 5-NOT 5,6-MeO-MiPT 5,6-MDO-DiPT 5,6-MDO-DMT 5,6-MDO-MiPT 5,6-DHT 5,7-DHT 6-Fluoro-DMT 6-Fluoro-T 6-MeO-DMT 6-MeO-T 6-Methyl-T 7-Chloro-T 7-MeO-T 7-Methyl-DMT 7-Methyl-T Acetryptine (5-AT) Aeruginascin (4-PO-TMT) AGH-107 AGH-192 AH-494 ALiPT Alpertine Baeocystin (4-PO-NMT) Benzotript (4-chlorobenzoyl-L-tryptophan) Bufotenidine (5-HTQ) Bufotenin (5-HO-DMT) Convolutindole A CP-132,484 DALT DBT Desformylflustrabromine DET DiPT DMT DPT E-6801 E-6837 EiPT EMDT EPT Ethocybin (4-PO-DET) FGIN-127 FGIN-143 FT-104 HIOC Idalopirdine Indolylethylfentanyl Indorenate Iprocin (4-HO-DiPT) Isamide Lespedamine MBT MET Milipertine Miprocin (4-HO-MiPT) MiPT MPT MS-245 MSBT N-Feruloylserotonin (moschamine) NET/NETP NiPT NMT Norbaeocystin (4-PO-T) NTBT O-4310 O-Pivalylbufotenine Oxypertine PiPT Psilacetin (O-acetylpsilocin; 4-AcO-DMT) Psilocin (4-HO-DMT) Psilocybin (4-PO-DMT) Pyr-T RS134-49 Serotonin (5-HT) Solypertine ST-1936 Tryptamine (T) Tryptophan Yuremamine Z2876442907
N-Acetyltryptamines	2-Iodomelatonin 2-Phenylmelatonin 5-Methoxyluzindole 6-Chloromelatonin 6-Fluoromelatonin 6-Hydroxymelatonin 6-Methoxymelatonin 6,7-Dichloro-2-methylmelatonin α-Methylmelatonin Luzindole Melatonin Normelatonin (N-acetylserotonin; NAS) N-Acetyltryptamine N-Butanoylmelatonin N-Propionylmelatonin Piromelatine TIK-301
α-Alkyltryptamines	2,α-DMT 4-HO-αMT 4-HO-MPMI (lucigenol) 4-Me-αET 4-Me-αMT 5-Chloro-αET 5-Chloro-αMT 5-Ethoxy-αMT 5-Fluoro-αET 5-Fluoro-αMT 5-iPrO-αMT 5-MeO-α,N,N-TMT 5-MeO-αET 5-MeO-αMT 5-MeO-MPMI 5-Methyl-αET 6-Fluoro-αMT 7-Chloro-αMT 7-Methyl-αET α-Methyl-5-HTP α-Methylmelatonin α-Methylserotonin (5-HO-αMT) α-Methyltryptophan (αMTP) α,N-DMT (N-methyl-αMT) α,N,N-TMT α,N,O-TMS αET (etryptamine) αMT AL-37350A (4,5-DHP-αMT) BK-5Br-NM-AMT BK-5Cl-NM-AMT BK-5F-NM-AMT BK-NM-AMT BNC-210 BW-723C86 CP-135807 IPAP (α,N-DPT) MPMI
Triptans	Almotriptan Donitriptan Eletriptan Frovatriptan L-694247 Rizatriptan Sumatriptan Zolmitriptan
Cyclized tryptamines	Bay R 1531 Ciclindole Cyclic 3-OHM Ergolines and lysergamides (e.g., LSD) Flucindole Harmala alkaloids and β-carbolines (e.g., 6-MeO-THH, 9-Me-BC, β-carboline (norharman), harmaline, harmalol, harmane, harmine, pinoline, tetrahydroharmine, tryptoline) Iboga alkaloids and related (e.g., DM-506 (ibogaminalog), ibogaine, ibogamine, noribogaine, tabernanthalog, tabernanthine) LY-266,097 Metralindole NDTDI PHA-57378 PNU-22394 PNU-181731 RU-28306 Yohimbans (e.g., yohimbine, rauwolscine, spegatrine, corynanthine, ajmalicine, reserpine, deserpidine, rescinnamine)
Isotryptamines	5-MeO-isoDMT 6-MeO-isoDMT AAZ-A-154 (DLX-001) isoAMT isoDMT Isotryptamine (isoT) PNU-181731 Ro60-0175
Related compounds	2-Azapsilocin 4-Aza-5-MeO-DPT 5-Aza-4-MeO-DiPT 5-HIAA 5-HIAL 5-HITCA 5-MIAL 7-Aza-5-MeO-DiPT AAZ-A-154 AL-34662 AL-38022A Benzofurans (e.g., 3-APB, 5-MeO-DiBF, BPAP, dimemebfe, mebfap) BRL-54443 CP-94253 EMD-386088 I-32 IAL Latrepirdine LY-367265 Non-tryptamine triptans (e.g., avitriptan, LY-334370, naratriptan) Pirlindole (R)-69 (3IQ) Ro60-0213 RU-24,969 Sertindole SN-22 Tepirindole Tetrindole VER-3323 VU6067416 YM-348

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