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Other names | Millipertine; WIN18935; WIN-18,935; Win-18935 |
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Formula | C24H31N3O3 |
Molar mass | 409.530 g·mol−1 |
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Milipertine (INN , USAN ; developmental code name WIN-18935) is a drug described as an antipsychotic, neuroleptic, and tranquilizer which was under development for the treatment of schizophrenia but was never marketed. [1] [2] [3] [4]
Structurally, it is a substituted tryptamine and a piperazinylethylindole. [5] [6] [7] The drug is closely structurally related to other "pertines" including alpertine, oxypertine, and solypertine, which are also tryptamines and piperazinylethylindoles. [5] [6] [8]
The related drug oxypertine shows high affinity for the serotonin 5-HT2 and dopamine D2 receptors (Ki = 8.6 nM and 30 nM, respectively) and is also known to act as a catecholamine depleting agent. [9] [10] Oxypertine, milipertine, and solypertine all antagonize the behavioral effects of tryptamine, a serotonin receptor agonist, and apomorphine, a dopamine receptor agonist, in animals. [9] [11] ortho-Methoxyphenylpiperazine (oMeOPP) has been said to be a metabolite of milipertine, as well as of oxypertine and several other drugs. [12] [13]
Milipertine produced troublesome side effects in clinical studies including orthostatic hypotension, drowsiness, extrapyramidal symptoms, elevated liver enzymes, and weight loss. [14] [15] [4] The side effects of milipertine occurred too frequently and at doses well below those producing antipsychotic effects and its development was abandoned. [14] [15] [4]
Milipertine was first described in the scientific literature by 1968. [1]
α-Methyltryptamine is a psychedelic, stimulant, and entactogen drug of the tryptamine family. It was originally developed as an antidepressant at Upjohn in the 1960s, and was used briefly as an antidepressant in the Soviet Union under the brand name Indopan or Indopane before being discontinued.
Chlorpromazine (CPZ), marketed under the brand names Thorazine and Largactil among others, is an antipsychotic medication. It is primarily used to treat psychotic disorders such as schizophrenia. Other uses include the treatment of bipolar disorder, severe behavioral problems in children including those with attention deficit hyperactivity disorder, nausea and vomiting, anxiety before surgery, and hiccups that do not improve following other measures. It can be given orally, by intramuscular injection, or intravenously.
3,4-Methylenedioxyamphetamine (MDA), sometimes referred to as “sass,” is an empathogen-entactogen, stimulant, and psychedelic drug of the amphetamine family that is encountered mainly as a recreational drug. In its pharmacology, MDA is a serotonin–norepinephrine–dopamine releasing agent (SNDRA). In most countries, the drug is a controlled substance and its possession and sale are illegal.
α-Ethyltryptamine, also known as etryptamine, is an entactogen and stimulant drug of the tryptamine family. It was originally developed and marketed as an antidepressant under the brand name Monase by Upjohn in the 1960s before being withdrawn due to toxicity.
Tiotixene, or thiothixene is a typical antipsychotic agent currently sold under the brand name Navane which is predominantly utilised to treat acute and chronic schizophrenia. Beyond its primary indication, it can exhibit a variety of effects common to neuroleptic drugs including anxiolytic, anti-depressive, and anti-aggressive properties.
Pipamperone, sold under the brand name Dipiperon, is a typical antipsychotic of the butyrophenone family used in the treatment of schizophrenia and as a sleep aid for depression. It is or has been marketed under brand names including Dipiperon, Dipiperal, Piperonil, Piperonyl, and Propitan. Pipamperone was discovered at Janssen Pharmaceutica in 1961, and entered clinical trials in the United States in 1963.
Molindone, sold under the brand name Moban, is an antipsychotic medication which is used in the United States in the treatment of schizophrenia. It is taken by mouth.
Cyamemazine (Tercian), also known as cyamepromazine, is a typical antipsychotic drug of the phenothiazine class which was introduced by Theraplix in France in 1972 and later in Portugal as well.
Oxypertine, sold under brand names including Equipertine, Forit, Integrin, Lanturil, Lotawin, and Opertil, is an antipsychotic medication used in the treatment of schizophrenia. It was also evaluated for the treatment of anxiety at a dosage of 20 mg per day.
Nemonapride, also previously known as emonapride and sold under the brand name Emilace, is an atypical antipsychotic which is used in the treatment of schizophrenia. It is taken by mouth.
A monoamine releasing agent (MRA), or simply monoamine releaser, is a drug that induces the release of a monoamine neurotransmitter from the presynaptic neuron into the synapse, leading to an increase in the extracellular concentrations of the neurotransmitter. Many drugs induce their effects in the body and/or brain via the release of monoamine neurotransmitters, e.g., trace amines, many substituted amphetamines, and related compounds.
Tiospirone (BMY-13,859), also sometimes called tiaspirone or tiosperone, is an atypical antipsychotic of the azapirone class. It was investigated as a treatment for schizophrenia in the late 1980s and was found to have an effectiveness equivalent to those of typical antipsychotics in clinical trials but without causing extrapyramidal side effects. However, development was halted and it was not marketed. Perospirone, another azapirone derivative with antipsychotic properties, was synthesized and assayed several years after tiospirone. It was found to be both more potent and more selective in comparison and was commercialized instead.
2,3-Dichlorophenylpiperazine (2,3-DCPP or DCPP) is a chemical compound from the phenylpiperazine family. It is both a precursor in the synthesis of aripiprazole and one of its metabolites. It is unclear whether 2,3-DCPP is pharmacologically active as a serotonin receptor agonist similar to its close analogue 3-chlorophenylpiperazine (mCPP), though it has been shown to act as a partial agonist of the dopamine D2 and D3 receptors.
Clorotepine, also known as octoclothepin or octoclothepine, is an antipsychotic of the tricyclic group which was derived from perathiepin in 1965 and marketed in the Czech Republic by Spofa in or around 1971 for the treatment of schizophrenic psychosis.
Levofenfluramine (INN), or (−)-3-trifluoromethyl-N-ethylamphetamine, also known as (−)-fenfluramine or (R)-fenfluramine, is a drug of the amphetamine family that, itself (i.e., in enantiopure form), was never marketed. It is the levorotatory enantiomer of fenfluramine, the racemic form of the compound, whereas the dextrorotatory enantiomer is dexfenfluramine. Both fenfluramine and dexfenfluramine are anorectic agents that have been used clinically in the treatment of obesity (and hence, levofenfluramine has been as well since it is a component of fenfluramine). However, they have since been discontinued due to reports of causing cardiovascular conditions such as valvular heart disease and pulmonary hypertension, adverse effects that are likely to be caused by excessive stimulation of 5-HT2B receptors expressed on heart valves.
Enciprazine is an anxiolytic and antipsychotic of the phenylpiperazine class which was never marketed. It shows high affinity for the α1-adrenergic receptor and 5-HT1A receptor, among other sites. The drug was initially anticipated to produce ortho-methoxyphenylpiperazine (oMeOPP), a serotonin receptor agonist with high affinity for the 5-HT1A receptor, as a significant active metabolite, but subsequent research found this not to be the case.
Tepirindole (INNTooltip International Nonproprietary Name; developmental code names RU-27592, HR-592) is a tryptamine-related atypical antipsychotic and major tranquilizer which was never marketed. It is similar in structure to tryptamines but is not technically a tryptamine itself and is instead a piperidinyl indole. The drug is said to act on dopamine D2, serotonin 5-HT2, and α1-adrenergic receptors. It is a potent dopamine receptor antagonist but reportedly has little propensity to cause catalepsy and has been said to potentially be useful in treating the negative symptoms of schizophrenia. The drug may also act as a potent serotonin receptor agonist. Tepirindole was first described in the literature by 1979.
Alpertine is a drug described as an antipsychotic, neuroleptic, and tranqulizer which was never marketed.
Solypertine, also known as solypertine tartrate in the case of the tartrate salt, is a drug described as an antiadrenergic and as also potentially possessing neuroleptic properties which was never marketed.
ortho-Methoxyphenylpiperazine (oMeOPP), also known as 2-methoxyphenylpiperazine (2-MeOPP), is a phenylpiperazine derivative which is known to act as a serotonergic agent. Along with various other phenylpiperazines, like benzylpiperazine (BZP) and trifluoromethylphenylpiperazine (TFMPP), oMeOPP has been found in illicit drug samples.
Pertines (class 7; Table 5.12) The pertines oxypertine, solypertine, milipertine, and alpertine are piperazinylethylindoles.
Furthermore, oMeOPP is a metabolite of some prescribed drugs: enciprazione, milipertine, urapidil, dropropizine and oxypertine.[1,47]