Nitrafudam

Nitrafudam is an antidepressant compound that was developed in the 1970-1980s.[1][2] It contains three functional groups: a nitrobenzene, a furan ring and an amidine.

## Synthesis

Nitrafudam synthesis

Azo coupling between 2-nitrophenyldiazonium chloride [119-66-4] (1) and furfural (2) leads to 5-(2-nitrophenyl)furfural [20000-96-8] (3). Treatment of the aldehyde with hydroxylamine gives the corresponding aldoxime (PC789659). Upon dehydration, FGI to the nitrile occurs [57666-58-7] (4). A Pinner reaction with anhydrous methanolic hydrogen chloride gives the corresponding imidate (imino-ether) [62821-40-3] (5). An addition-elimination reaction with ammonia causes FGI to an amidine, thus completing the synthesis of nitrafudam (6).

## References

1. ↑ "5-phenyl-2-furamidines: a new chemical class of potential antidepressants". Arzneimittel-Forschung 33 (10): 1411–1416. 1983. PMID 6140016.
2. ↑ Pelosi SS Jr, White RE, White RL Jr, Wright GC, You CN, US patent 3919231, issued 1975

* v
* t
* e

Antidepressants (N06A)

Specific reuptake inhibitors and/or receptor modulators

| SSRIs|

* Citalopram
* Escitalopram
* Fluoxetine#
* Fluvoxamine
* Indalpine‡
* Paroxetine
* Sertraline
* Zimelidine‡

|

SNRIs|

* Desvenlafaxine
* Duloxetine
* Levomilnacipran
* Milnacipran
* Tofenacin
* Venlafaxine

NRIs|

* Atomoxetine
* Reboxetine
* Viloxazine

NDRIs|

* Amineptine‡
* Bupropion
* Nomifensine‡

NaSSAs|

* Mianserin
* Mirtazapine
* Setiptiline

SARIs|

* Etoperidone
* Nefazodone
* Trazodone

SMS|

* Vilazodone
* Vortioxetine

Others|

* Agomelatine
* Amisulpride
* Esketamine†
* Etryptamine‡
* Indeloxazine
* flupentixol
* Ketamine†
* Medifoxamine‡
* Metryptamine‡
* Oxaflozane‡
* Pivagabine‡
* Tandospirone
* Teniloxazine
* Tianeptine

Tricyclic and tetracyclic antidepressants

| TCAs|

* Amineptine‡
* Amitriptyline#
* Amitriptylinoxide
* Butriptyline‡
* Clomipramine#
* Demexiptiline‡
* Desipramine
* Dibenzepin
* Dimetacrine‡
* Dosulepin
* Doxepin
* Imipramine
* Imipraminoxide‡
* Iprindole‡
* Lofepramine
* Melitracen
* Metapramine‡
* Nitroxazepine
* Nortriptyline
* Noxiptiline
* Opipramol
* Pipofezine
* Propizepine‡
* Protriptyline
* Quinupramine‡
* Tianeptine
* Trimipramine

|

TeCAs|

* Amoxapine
* Maprotiline
* Mianserin
* Mirtazapine
* Setiptiline

Others|

* Tiazesim

Monoamine oxidase inhibitors

| Non-selective|

* Irreversible: Benmoxin‡
* Iproclozide‡
* Iproniazid‡
* Isocarboxazid
* Isoniazid#
* Linezolid#
* Mebanazine‡
* Nialamide‡
* Octamoxin‡
* Phenelzine
* Pheniprazine‡
* Phenoxypropazine‡
* Pivhydrazine‡
* Safrazine‡
* Tedizolid
* Tranylcypromine

* Reversible: Caroxazone‡

* Mixed: Bifemelane

|

MAOA-selective|

* Reversible: Eprobemide
* Metralindole
* Minaprine‡
* Moclobemide
* Pirlindole
* Tetrindole
* Toloxatone

MAOB-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)
* 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

Monoamine reuptake inhibitors

DAT
(DRIs)|

* Piperazines: DBL-583
* GBR-12783
* GBR-12935
* GBR-13069
* GBR-13098
* Nefazodone
* Vanoxerine

* Piperidines: 4-Fluoropethidine
* Benocyclidine (BTCP)
* Desoxypipradrol
* Dexmethylphenidate
* Difemetorex
* Ethylphenidate
* HDMP-28
* Methylphenidate
* Pethidine (meperidine)
* Phencyclidine
* Pipradrol
* Tenocyclidine

* Pyrrolidines: Diphenylprolinol
* MDPV
* Naphyrone
* Prolintane
* Pyrovalerone

* Tropanes: Altropane
* Benzatropine (benztropine)
* Brasofensine
* CFT
* Cocaine
* Dichloropane
* Difluoropine
* Etybenzatropine (ethybenztropine)
* FE-β-CPPIT
* FP-β-CPPIT
* Ioflupane (123I)
* RTI-55
* RTI-112
* RTI-113
* RTI-121
* RTI-126
* RTI-150
* RTI-177
* RTI-229
* RTI-336
* Tesofensine
* Troparil
* Tropoxane
* WF-11
* WF-23
* WF-31
* WF-33

* Others: Adrafinil
* Amifitadine
* Armodafinil
* Amfonelic acid
* Amineptine
* Ansofaxine
* BTQ
* BTS 74,398
* Bupropion
* Chaenomeles speciosa
* Ciclazindol
* Dasotraline
* Desmethylsertraline
* Desmethylsibutramine
* Diclofensine
* Didesmethylsibutramine
* Dimethocaine
* Diphenylpyraline
* Dizocilpine (MK-801)
* DOV-102,677
* DOV-216,303
* Efavirenz
* Ephenidine
* Esketamine
* EXP-561
* Fencamfamin
* Fezolamine
* Fluorenol
* GYKI-52895
* Indatraline
* Ketamine
* Lefetamine
* Levophacetoperane
* Liafensine
* LR-5182
* Manifaxine
* Mazindol
* Medifoxamine
* Mesocarb
* Metaphit
* MIN-117 (WF-516)
* Modafinil
* Nefopam
* Nomifensine
* NS-2359
* O-2172
* Oroxylin A
* Perafensine
* Pridefine
* Radafaxine
* Rimcazole
* Sertraline
* Sibutramine
* Solriamfetol
* Tametraline
* Tedatioxetine
* Tripelennamine
* Venlafaxine

NET
(NRIs)|

* Selective norepinephrine reuptake inhibitors: Amedalin
* Alseroxylon
* Ciclazindol
* Daledalin
* Edivoxetine
* Esreboxetine
* Lortalamine
* Mazindol
* Nisoxetine
* Reboxetine
* Talopram
* Talsupram
* Tandamine
* Teniloxazine
* Viloxazine

* Norepinephrine–dopamine reuptake inhibitors: Amineptine
* Bupropion
* Fencamine
* Fencamfamin
* Hydroxybupropion
* Lefetamine
* Levophacetoperane
* LR-5182
* Manifaxine
* Methylphenidate
* Nomifensine
* O-2172
* Radafaxine
* Solriamfetol

* Serotonin–norepinephrine reuptake inhibitors: Atomoxetine (tomoxetine)
* BTS-54505
* CP-39,332
* Desvenlafaxine
* Duloxetine
* Eclanamine
* Levomilnacipran
* McN-5652
* Milnacipran
* N-Methyl-PPPA
* Nafenodone
* PPPA
* Tofenacin
* Venlafaxine
* WY-45233

* Serotonin–norepinephrine–dopamine reuptake inhibitors: 3,3-Diphenylcyclobutanamine
* Amifitadine
* Ansofaxine
* Bicifadine
* Brasofensine
* Centanafadine
* Cocaine
* Dasotraline
* Desmethylsertraline
* Desmethylsibutramine
* Diclofensine
* Didesmethylsibutramine
* DOV-102677
* DOV-216303
* EXP-561
* Fezolamine
* HDMP-28
* Indatraline
* JNJ-7925476
* JZ-IV-10
* Liafensine
* Mazindol
* Naphyrone
* Nefazodone
* Nefopam
* NS-2359
* Perafensine
* PRC200
* Pridefine
* SEP-228431
* SEP-228432
* Sibutramine
* Tedatioxetine
* Tesofensine
* Tropanes (e.g., cocaine)

* Tricyclic antidepressants: Amitriptyline
* Butriptyline
* Cianopramine
* Clomipramine
* Desipramine
* Dosulepin (dothiepin)
* Doxepin
* Imipramine
* Lofepramine
* Melitracen
* Nortriptyline
* Protriptyline
* Trimipramine

* Tetracyclic antidepressants: Amoxapine
* Maprotiline
* Mianserin
* Oxaprotiline
* Setiptiline

* Others: Antihistamines (e.g., brompheniramine, chlorphenamine, pheniramine, tripelennamine)
* Antipsychotics (e.g., loxapine, ziprasidone)
* Arylcyclohexylamines (e.g., ketamine, phencyclidine)
* Dopexamine
* Ephenidine
* Ginkgo biloba
* Indeloxazine
* Nefazodone
* Opioids (e.g., Desmetramadol|Desmetramadol]]]], methadone, pethidine (meperidine), tapentadol, tramadol, Levorphanol

SERT
(SRIs)|

* Selective serotonin reuptake inhibitors: Alaproclate
* Centpropazine
* Cericlamine
* Citalopram
* Dapoxetine
* Desmethylcitalopram
* Didesmethylcitalopram
* Escitalopram
* Femoxetine
* Fluoxetine
* Fluvoxamine
* Indalpine
* Ifoxetine
* Norfluoxetine
* Omiloxetine
* Panuramine
* Paroxetine
* PIM-35
* Pirandamine
* RTI-353
* Seproxetine
* Sertraline
* Zimelidine

* Selective serotonin reuptake inhibitors and serotonin receptor modulators: Etoperidone
* Litoxetine
* Lubazodone
* LY-393558
* SB-649915
* TGBA01AD
* Trazodone
* Vilazodone
* Vortioxetine

* Serotonin–norepinephrine reuptake inhibitors: Atomoxetine (tomoxetine)
* Bicifadine
* BTS-54505
* CP-39332
* Desvenlafaxine
* Duloxetine
* Eclanamine
* Levomilnacipran
* McN-5652
* Milnacipran
* N-Methyl-PPPA
* PPPA
* Tofenacin
* Venlafaxine
* WY-45233

* Serotonin–norepinephrine–dopamine reuptake inhibitors: 3,3-Diphenylcyclobutanamine
* Amifitadine
* Ansofaxine
* Bicifadine
* Brasofensine
* Centanafadine
* Cocaine
* Dasotraline
* Desmethylsertraline
* Desmethylsibutramine
* Diclofensine
* Didesmethylsibutramine
* DOV-102677
* DOV-216303
* EXP-561
* Fezolamine
* HDMP-28
* Indatraline
* JNJ-7925476
* JZ-IV-10
* Liafensine
* Mazindol
* Naphyrone
* Nefazodone
* Nefopam
* NS-2359
* Perafensine
* PRC200
* Pridefine
* SEP-228431
* SEP-228432
* Sibutramine
* Tedatioxetine
* Tesofensine
* Tropanes (e.g., cocaine)

* Tricyclic antidepressants: Amitriptyline
* Cianopramine
* Clomipramine
* Cyanodothiepin
* Desipramine
* Dosulepin (dothiepin)
* Doxepin
* Imipramine
* Lofepramine
* Nortriptyline
* Pipofezine
* Protriptyline

* Others: A-80426
* Amoxapine
* Antihistamines (e.g., brompheniramine, [[Chemistry:Chlorphenchlorphenamine]], dimenhydrinate, diphenhydramine, mepyramine (pyrilamine), pheniramine, Chemistry:Tripelennamine

VMATs|

* Amiodarone
* Amphetamines (e.g., amphetamine, methamphetamine, MDMA)
* APP
* AZIK
* Bietaserpine
* Deserpidine
* Deutetrabenazine
* Dihydrotetrabenazine
* Efavirenz
* GBR-12935
* GZ-793A
* Ibogaine
* Ketanserin
* Lobeline
* Methoxytetrabenazine
* Reserpine
* Rose bengal
* Tetrabenazine
* Valbenazine
* Vanoxerine (GBR-12909)

Others|

* DAT enhancers: Luteolin

* DAT modulators: Agonist-like: SoRI-9804
* SoRI-20040; Antagonist-like: SoRI-20041

See also: Receptor/signaling modulators • Monoamine releasing agents • Adrenergics • Dopaminergics • Serotonergics • Monoamine metabolism modulators • Monoamine neurotoxins

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*[SSRIs]: Selective serotonin reuptake inhibitors
*[SNRIs]: Serotonin–norepinephrine reuptake inhibitors
*[NRIs]: Norepinephrine reuptake inhibitors
*[NDRIs]: Norepinephrine–dopamine reuptake inhibitors
*[NaSSAs]: Noradrenergic and specific serotonergic antidepressants
*[SARIs]: Serotonin antagonist and reuptake inhibitors
*[SMS]: Serotonin modulator and stimulators
*[TCAs]: Tricyclic antidepressants
*[TeCAs]: Tetracyclic antidepressants
*[MAOA]: Monoamine oxidase A
*[MAOB]: Monoamine oxidase B
*[SAMe]: S-adenosyl-L-methionine
*[5-HTP]: 5-hydroxytryptophan
*[DAT]: Dopamine transporter
*[DRIs]: Dopamine reuptake inhibitors
*[NET]: Norepinephrine transporter
*[SERT]: Serotonin transporter
*[SRIs]: Serotonin reuptake inhibitors
*[VMATs]: Vesicular monoamine transporters