WO1998018769A1 - Sustained-release derivatives of hydroxylated analogs of substituted 1-[2[bis(aryl)methoxy]ethyl]-piperazines and -homopiperazines and their use as noncompetitive antagonists of dopamine reuptake - Google Patents
Sustained-release derivatives of hydroxylated analogs of substituted 1-[2[bis(aryl)methoxy]ethyl]-piperazines and -homopiperazines and their use as noncompetitive antagonists of dopamine reuptake Download PDFInfo
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- WO1998018769A1 WO1998018769A1 PCT/US1997/019758 US9719758W WO9818769A1 WO 1998018769 A1 WO1998018769 A1 WO 1998018769A1 US 9719758 W US9719758 W US 9719758W WO 9818769 A1 WO9818769 A1 WO 9818769A1
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- C07D295/00—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms
- C07D295/04—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms with substituted hydrocarbon radicals attached to ring nitrogen atoms
- C07D295/08—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms with substituted hydrocarbon radicals attached to ring nitrogen atoms substituted by singly bound oxygen or sulfur atoms
- C07D295/084—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms with substituted hydrocarbon radicals attached to ring nitrogen atoms substituted by singly bound oxygen or sulfur atoms with the ring nitrogen atoms and the oxygen or sulfur atoms attached to the same carbon chain, which is not interrupted by carbocyclic rings
- C07D295/088—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms with substituted hydrocarbon radicals attached to ring nitrogen atoms substituted by singly bound oxygen or sulfur atoms with the ring nitrogen atoms and the oxygen or sulfur atoms attached to the same carbon chain, which is not interrupted by carbocyclic rings to an acyclic saturated chain
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- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/33—Heterocyclic compounds
- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/495—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with two or more nitrogen atoms as the only ring heteroatoms, e.g. piperazine or tetrazines
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- A61P25/00—Drugs for disorders of the nervous system
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- C07D215/00—Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems
- C07D215/02—Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen atoms or carbon atoms directly attached to the ring nitrogen atom
- C07D215/16—Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen atoms or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D215/20—Oxygen atoms
- C07D215/24—Oxygen atoms attached in position 8
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- C07D243/04—Heterocyclic compounds containing seven-membered rings having two nitrogen atoms as the only ring hetero atoms having the nitrogen atoms in positions 1 and 3
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D295/00—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms
- C07D295/04—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms with substituted hydrocarbon radicals attached to ring nitrogen atoms
- C07D295/08—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms with substituted hydrocarbon radicals attached to ring nitrogen atoms substituted by singly bound oxygen or sulfur atoms
- C07D295/084—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms with substituted hydrocarbon radicals attached to ring nitrogen atoms substituted by singly bound oxygen or sulfur atoms with the ring nitrogen atoms and the oxygen or sulfur atoms attached to the same carbon chain, which is not interrupted by carbocyclic rings
- C07D295/092—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms with substituted hydrocarbon radicals attached to ring nitrogen atoms substituted by singly bound oxygen or sulfur atoms with the ring nitrogen atoms and the oxygen or sulfur atoms attached to the same carbon chain, which is not interrupted by carbocyclic rings with aromatic radicals attached to the chain
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- C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
- C07D307/02—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
- C07D307/34—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
- C07D307/38—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with substituted hydrocarbon radicals attached to ring carbon atoms
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- C07D333/02—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings
- C07D333/04—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings not substituted on the ring sulphur atom
- C07D333/06—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings not substituted on the ring sulphur atom with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to the ring carbon atoms
- C07D333/14—Radicals substituted by singly bound hetero atoms other than halogen
- C07D333/20—Radicals substituted by singly bound hetero atoms other than halogen by nitrogen atoms
Definitions
- the present invention is directed to sustained- release derivatives of hydroxylated analogs of substituted 1- [ 2 [bis ( aryl ) methoxy] ethyl ] -piperazines and -homopiperazines and their use .
- Drug abuse is a major public health problem.
- One of the major drugs of abuse in the U.S. is cocaine.
- Cocaine is a locomotor stimulant, which acts as a local
- mesolimbic dopamine is a crucial neurochemical mediator of rewarding behaviors, e.g., eating and sex (Wise, "Brain dopamine and reward,”
- pharmacotherapies which enable the treatment of larger numbers of drug abusers than would otherwise be possible with nonpharmacological treatment modalities and which can be coupled with more traditional treatment approaches, such as counseling and rehabilitation.
- One pharmacotherapeutic approach is to develop a competitive cocaine antagonist, i.e., a drug that will bind to the dopamine transporter but will not inhibit dopamine reuptake (Rothman et al., Pharma . Biochem . & Behav. 40: 387-397 (1991)).
- a cocaine antagonist would be expected to block cocaine from increasing the level of extracellular dopamine.
- a patient could overcome the inhibitory effect of a competitive cocaine antagonist by self-administering more cocaine.
- the noncompetitive cocaine antagonist would be one that binds to the dopamine transporter with high affinity and dissociates slowly.
- the noncompetitive cocaine antagonist would then provide a sustained increase in the level of extracellular dopamine, thereby providing the drug abuser with some relief from cocaine-craving due to dopamine deficiency, yet inhibiting cocaine from further elevating the level of extracellular dopamine and increasing the probability of increased toxic side effects.
- Vanoxerine is a selective inhibitor of dopamine reuptake and is about 700-fold more potent than cocaine in inhibiting dopamine reuptake in vitro (Andersen, Eur . J. Pharmacol . 166: 493-504 (1989)).
- vanoxerine-inhibited dopamine reuptake does not result in addictive and euphorogenic effects and, thus, vanoxerine is considered to be a "type-II blocker" (Rothman (1990), supra ) .
- vanoxerine must occupy the dopamine transporter to a greater extent than cocaine in order to produce equivalent behavioral effects (Rothman et al . , Pharma col . Biochem . & Behav. 43: 1135-1142 (1992)).
- vanoxerine causes dose- related elevations in extracellular dopamine when given alone, cocaine causes a rapid and short-lived increase in dopamine, whereas vanoxerine causes a low and sustained elevation of dopamine (Baumann et al. (1994), supra ) .
- vanoxerine causes a low and sustained elevation of dopamine (Baumann et al. (1994), supra ) .
- vanoxerine causes a low and sustained elevation of dopamine (Baumann et al. (1994), supra ) .
- vanoxerine causes a low and sustained elevation of dopamine (Baumann et al. (1994), supra ) .
- vanoxerine causes a low and sustained elevation of dopamine (Baumann et al. (1994), supra ) .
- vanoxerine causes a low and sustained elevation of dopamine (Baumann et al. (1994), supra ) .
- vanoxerine causes a low and sustained elevation of
- Another cocaine antagonist is 1- [2- (diphenyl- methoxy) -ethyl] -4- (3-phenylpropyl) homopiperazine, otherwise known as LRllll, which is a homolog of l-[2- diphenyl-methoxy-ethyl] -4- (3-phenylpropyl) piperazine, otherwise known as GBR12935 (Rothman et al . , Synapse 14: 34-39 (1993)).
- LRllll which differs from GBR12935 by the addition of a methylene group to the piperazine ring, has affinity for the dopamine transporter similar to that of GBR12935 but with significantly higher selectivity (Rothman et al .
- LRllll is over 4, 000-fold more selective for the dopamine transporter than the serotonin and norepinephrine transporters (Rothman et al . (1993), supra ) .
- dopamine reuptake inhibitors are also known. See, for example, van der Zee et al., Eur. J. Med. Chem . -- Chimica Therapeutica 15(4): 363-370 (1980); van der Zee et al . , Neuropharmacology 24(12): 1171-1174 (1985); Gootjes et al . , EP 0 099 148
- a dopamine reuptake inhibitor e.g., cocaine
- a norepinephrine and/or serotonin reuptake inhibitor e.g., methamphetamine
- the present invention provides sustained-release derivatives of hydroxylated analogs of substituted 1- [2 [bis (aryl)methoxy] ethyl] -piperazines and -homopiperazines .
- the hydroxylated analogs of substituted 1- [2-bis (aryl) methoxy] ethyl] -piperazines and -homopiperazines are derivatized for sustained-release by esterification of the hydroxyl group.
- the hydroxyl group is esterified with a medium- to long-chain alkanoic acid.
- the alkanoic acid comprises a C 6 -20 alkyl, C 6 -2o aryl alkyl, or a C 6 - 2 0 cycloalkyl alkyl group.
- alkanoic acids include decanoic acid, cyclopentyl propionic acid, phenyl propionic acid, valeric acid, caproic acid, heptanoic acid, and caprylic acid.
- a preferred substituted piperazine for hydroxylation and subsequent esterification in accordance with the present invention is 1- [2- [bis- (4-fluorophenyl) methoxy] ethyl] -4- [3- phenylpropyl] piperazine .
- a preferred sustained-release derivative of such a compound is the decanoate ester referred to herein as DBL 583 or, in the alternative, compound 5*, scheme 1, page 53, know as (+/-) l-[2-[bis- ( 4-fluoro-phenyl) methoxy] ethyl] -4- [ 3-phenyl-3-hydroxypropyl] piperazine .
- the sustained release derivative has a pharmacological half-life of at least about 30 days.
- a pharmaceutical composition comprising such a sustained- release derivative and a pharmaceutically acceptable carrier.
- the pharmaceutical composition is suitable for depot injection into, for example, the buttocks or thigh, such that a continuous release of a small portion of the derivative is continuously released, preferably over at least about 30 days, into the plasma until depleted.
- the present invention further provides a method of using such a sustained-release derivative to bind the dopamine transporter as, for example, a noncompetitive antagonist of a dopamine reuptake inhibitor or an antagonist of a dopamine releaser or a norepinephrine and/or serotonin reuptake inhibitor, although the method is useful for other purposes where binding of the dopamine transporter by a present inventive compound has a desired effect.
- the sustained-release derivative is administered to an individual in need of such a compound.
- the sustained- release derivative is administered in a sufficient amount such that a desired effect is realized.
- a dopamine reuptake inhibitor or a dopamine releaser or norepinephrine and/or serotonin reuptake inhibitor in the individual is antagonized over a period of time by a sustained release of the derivative during that period of time.
- the compound is administered by depot injection. More preferably, the compound is administered by depot injection into the buttocks or thigh.
- the period of time of antagonism is at least about 30 days.
- the method is especially useful in the treatment of an individual who abuses cocaine.
- a sustained-release derivative in accordance with the present invention antagonizes a dopamine releaser or an inhibitor of norepinephrine and/or serotonin reuptake, such a derivative
- a pharmaceutical composition comprising such a derivative, and a method of administering such a derivative are useful in the treatment of an individual who abuses amphetamines, such as methamphetamine, and phencyclidine .
- Figure 1 is a graph of effect (% of control) versus dose of decanoate (compound 5*, i.e., DBL 583, ml intramuscularly) , which illustrates the mean effects of a single injection of compound 5* in sesame oil on food- maintained responding and cocaine-maintained responding in rhesus monkeys over 24 days of treatment.
- Figure 3 is a graph of dopamine (picogram/fraction) versus methamphetamine (1 mg/kg IV) over time (min), which illustrates that compound 5* increased basal levels of dopamine two-fold and essentially eliminated the ability of methamphetamine to increase dopamine levels.
- Figure 4 is a graph of monoamine (percent of baseline) versus methamphetamine (1 mg/kg IV) over time (min) , which illustrates that compound 5* blunted the ability of methamphetamine to increase dopamine (DA) and serotonin (5-HT) .
- the present invention provides compounds and corresponding pharmaceutical compositions useful in the treatment of an individual in need of a compound that binds to the dopamine transporter, wherein such binding has a desired effect, such as antagonism of a dopamine reuptake inhibitor or dopamine releaser or norepinephrine and/or serotonin reuptake inhibitor. Accordingly, the present invention also provides a method of treatment comprising the administration of a compound or a composition to an individual in need thereof. Given that, in one aspect, the present invention addresses the problem of patient noncompliance in the context of drug abuse treatment, in particular cocaine and methamphetamine abuse treatment, the present invention serves to fulfill a long-felt need.
- the present invention provides sustained-release derivatives of hydroxylated analogs of substituted 1- [2 [bis (aryl) methoxy] ethyl] -piperazines and -homopiperazines.
- the hydroxylated analogs of substituted 1- [2-bis (aryl) methoxy] ethyl] -piperazines and -homopiperazines are derivatized for sustained-release by esterification of the hydroxyl group.
- Esterification of the hydroxyl group is preferably carried out in accordance with the methods set forth herein.
- the hydroxyl group is esterified with a medium- to long-chain alkanoic acid.
- the alkanoic acid comprises a C 6 -2o alkyl, C 6 - 20 aryl alkyl, or a C 6 - 20 cycloalkyl alkyl group.
- Examples of preferred alkanoic acids include decanoic acid, cyclopentyl propionic acid, phenyl propionic acid, valeric acid, caproic acid, heptanoic acid, and caprylic acid.
- the resulting nonpolar, oil-soluble compounds is suitable for depot injection because the high partition coefficient favors the oil phase, resulting in the continuous release of a small proportion of the compound into the plasma, until depleted.
- a preferred substituted piperazine for hydroxylation and subsequent esterification in accordance with the present invention is 1- [2- [bis- (4- fluorophenyl) methoxy] ethyl] -4- [3-phenylpropyl] piperazine .
- a preferred sustained-release derivative of such a compound is the decanoate ester referred to herein as DBL 583 or, in the alternative, compound 5*, scheme 1, page 53, know as (+/-) 1- [2- [bis- (4-fluorophenyl) methoxy] ethyl] -A - [ 3-phenyl-3-hydroxypropyl] piperazine .
- the sustained release derivative has a pharmacological half-life of at least about 30 days.
- each of Ri and R 2 is one or more of the following substituents : hydrogen, hydroxyl, lower alkyl, cycloalkyl, cycloalkyl alkyl, lower alkoxy, halo, halo lower alkyl, hydroxy lower alkyl, amino, lower alkyl mono amino, lower alkyl di amino, lower alkanoyl, lower alkenyl, and lower alkynyl; one of R 3 and R 4 is hydrogen or hydroxyl and the stereochemistry of R 3 and R4 is R, S, or RS .
- each of Ri and R 2 is one or more of the following substituents : hydrogen, hydroxyl, lower alkyl, cycloalkyl, cycloalkyl alkyl, lower alkoxy, halo, halo lower alkyl, hydroxy lower alkyl, amino, lower alkyl mono amino, lower alkyl di amino, lower alkanoyl, lower alkenyl and lower alkynyl; one of R 3 and R 4 is hydrogen or hydroxyl and the stereochemistry of R 3 and R 4 is R, S or RS .
- each of Ri and R2 is one or more of the following substituents : hydrogen, hydroxyl, lower alkyl, cycloalkyl, cycloalkyl alkyl, lower alkoxy, halo, halo lower alkyl, hydroxy lower alkyl, amino, lower alkyl mono amino, lower alkyl di amino, lower alkanoyl, lower alkenyl, and lower alkynyl; R 3 is 2-, 3-, or 4-hydroxyl, and b-c is a single, double ⁇ cis or trans) or triple bond.
- each of Rj . and R2 is one or more of the following substituents : hydrogen, hydroxyl, lower alkyl, cycloalkyl, cycloalkyl alkyl, lower alkoxy, halo, halo lower alkyl, hydroxy lower alkyl, amino, lower alkyl mono amino, lower alkyl di amino, lower alkanoyl, lower alkenyl, and lower alkynyl; R 3 is 2-, 3-, or 4-hydroxyl, and b-c is a single, double ⁇ cis or trans) or triple bond.
- each of Ri and R2 is one or more of the following substituents: hydrogen, hydroxyl, lower alkyl, cycloalkyl, cycloalkyl alkyl, lower alkoxy, halo, halo lower alkyl, hydroxy lower alkyl, amino, lower alkyl mono amino, lower alkyl di amino, lower alkanoyl, lower alkenyl, and lower alkynyl; one of R 3 and R is hydrogen or hydroxyl, the stereochemistry of the hydroxyl is R, S, or RS, and Ar contains 1-4 atoms from the following group : 0, N, and S. Examples of Ar include thiophene, furan, imidazole, and tetrazole.
- the sustained-release derivative has a pharmacological half-life of at least about 30 days .
- each of Ri and R 2 is one or more of the following substituents : hydrogen, hydroxyl, lower alkyl, cycloalkyl, cycloalkyl alkyl, lower alkoxy, halo, halo lower alkyl, hydroxy lower alkyl, amino, lower alkyl mono amino, lower alkyl di amino, lower alkanoyl, lower alkenyl, and lower alkynyl; one of R 3 and R 4 is hydrogen or hydroxyl, the stereochemistry of the hydroxyl is R, S, or RS, and
- Ar contains 1-4 atoms from the following group: 0, N, and
- Ar examples include pyridine and pyrazine.
- each of Ri and R 2 is one or more of the following substituents : hydrogen, hydroxyl, loweralkyl, cycloalkyl, cycloalkyl alkyl, lower alkoxy, halo, halo lower alkyl, hydroxy lower alkyl, amino, lower alkyl mono amino, lower alkyl di amino, lower alkanoyl, lower alkenyl, and lower alkynyl; R 3 is hydroxyl at positions 1-7 on Ar; and Ar contains 1-4 atoms from the following group: 0, N, and S. Examples of Ar includes indole, benzofuran, and benzoxazole .
- each of Ri and R 2 is one or more of the following substituents : hydrogen, hydroxyl, lower alkyl, cycloalkyl, cycloalkyl alkyl, lower alkoxy, halo, halo lower alkyl, hydroxy lower alkyl, amino, lower alkyl mono amino, lower alkyl di amino, lower alkanoyl, lower alkenyl, and lower alkynyl; R 3 is hydroxyl at positions 1-8 on Ar; and Ar contains 1-4 atoms from the following group: 0, N, and S. Examples of Ar includes quinoline and isoquinoline .
- each of Ri and R 2 is one or more of the following substituents: hydrogen, hydroxyl, lower alkyl, cycloalkyl, cycloalkyl alkyl, lower alkoxy, halo, halo lower alkyl, hydroxy lower alkyl, amino, lower alkyl mono amino, lower alkyl di amino, lower alkanoyl, lower alkenyl, and lower alkynyl; R 3 is hydrogen or hydroxyl and the stereochemistry of the hydroxyl is R, S, or RS; and R 4 is hydrogen or hydroxyl at positions 1-8 on Ar .
- Ar include indole, benzofuran, and benzoxazole.
- each of R x and R2 one or more of the following substituents : hydrogen, hydroxyl, lower alkyl, cycloalkyl, cycloalkyl alkyl, lower alkoxy, halo, halo lower alkyl, hydroxy lower alkyl, amino, lower alkyl mono amino, lower alkyl di amino, lower alkanoyl, lower alkenyl, and lower alkynyl;
- R 3 is hydrogen or lower alkyl;
- R 4 is hydroxyl;
- R 5 is hydrogen, lower alkyl, aryl, or aryl alkyl; and the stereochemistry of R 3 , R 4 and R 5 is R, S, or RS .
- each of Ri and R2 is one or more of the following substituents : hydrogen, hydroxyl, lower alkyl, cycloalkyl, cycloalkyl alkyl, lower alkoxy, halo, halo lower alkyl, hydroxy lower alkyl, amino, lower alkyl mono amino, lower alkyl di amino, lower alkanoyl, lower alkenyl, and lower alkynyl;
- R 3 is hydrogen;
- R 4 is hydroxyl;
- R 5 is hydrogen, lower alkyl, aryl, or aryl alkyl; the stereochemistry of R 3 , R 4 , and R 5 is R, S, or RS; and n is (CH 2 ) , (CH 2 ) 2 or (CH 2 ) 3 and can be substituted by R 5 .
- each of Ri and R 2 is one or more of the following substituents : hydrogen, hydroxyl, lower alkyl, cycloalkyl, cycloalkyl alkyl, lower alkoxy, halo, halo lower alkyl, hydroxy lower alkyl, amino, lower alkyl mono amino, lower alkyl di amino, lower alkanoyl, lower alkenyl, and lower alkynyl;
- each of Ri and R 2 is one or more of the following substituents: hydrogen, hydroxyl, lower alkyl, cycloalkyl, cycloalkyl alkyl, lower alkoxy halo, halo lower alkyl, hydroxy lower alkyl, amino, lower alkyl mono amino, lower alkyl di amino, lower alkanoyl, lower alkenyl, and lower alkynyl; each of R 3 - Re is hydrogen, hydroxyl, lower alkyl, cycloalkyl, cycloalkyl alkyl, halo, halo lower alkyl, lower alkoxy, hydroxy lower alkyl, lower alkenyl, and lower alkynyl; and each of R and Re is hydrogen or hydroxyl.
- the stereochemistry of R 3 -Rs is R, S, or RS .
- each of Ri and R 2 is one or more of the following substituents : hydrogen, hydroxyl, lower alkyl, cycloalkyl, cycloalkyl alkyl, lower alkoxy halo, halo lower alkyl, hydroxy lower alkyl, amino, lower alkyl mono amino, lower alkyl di amino, lower alkanoyl, lower alkenyl, and lower alkynyl; R 3 is hydroxyl at positions 2-6 on Ar; Ar contains 1-4 atoms from the following group: 0, N, and S; and b-c is a single, double ( cis or trans) or triple bond. Examples of Ar include pyridine and pyrazine.
- each of Ri and R 2 is one or more of the following substituents : hydrogen, hydroxyl, lower alkyl, cycloalkyl, cycloalkyl alkyl, lower alkoxy, halo, halo lower alkyl, hydroxy lower alkyl, amino, lower alkyl mono amino, lower alkyl di amino, lower alkanoyl, lower alkenyl, and lower alkynyl; R 3 is hydroxyl at positions 2-5 on Ar; and
- Ar contains 1-3 atoms from the following group: 0, N, and
- S; and b-c is a single, double ( cis or trans) or triple bond.
- Ar include thiophene, furan, and imidazole .
- Ri and R2 can be a lower alkyl group, such as a C1-4 alkyl, a lower alkoxy group, such as a C ⁇ _ 7 alkoxy, a lower alkyl monoamino, such as a C 1 - 7 alkyl monoamino, a lower alkyl diamino, such as a C 1 -7 alkyl diamino, a lower alkanoyl, such as a C 1 - 7 alkanoyl, an alkenyl, such as a C 1 -7 alkenyl, or an alkynyl, such as a C 1 -7 alkynyl .
- a lower alkyl group such as a C1-4 alkyl
- a lower alkoxy group such as a C ⁇ _ 7 alkoxy
- a lower alkyl monoamino such as a C 1 - 7 alkyl monoamino
- a lower alkyl diamino such as a C 1 -7 alkyl
- each of Ri and R 2 is one or more of the following substituents : hydrogen, hydroxyl, lower alkyl, cycloalkyl, cycloalkyl alkyl, lower alkoxy halo, halo lower alkyl, hydroxy lower 38 alkyl, amino, lower alkyl mono amino, lower alkyl di amino, lower alkanoyl, lower alkenyl, and lower alkynyl; and R 3 is lower alkyl, cyclo alkyl, cycloalkyl alkyl, or alkyl.
- R3 of the esterifying acid is a C 6 -2 0 alkyl, C 6 -C 2 o aryl alkyl, or a C 6 -2o cycloalkyl alkyl.
- compositions comprising such a sustained- release derivative and a pharmaceutically acceptable carrier.
- pharmaceutically acceptable carriers for use in such compositions are well-known to those skilled in the art. The choice of carrier will be determined in part by the particular composition, as well as by the particular method, e.g., injection, in particular depot injection, or transdermal patch, used to administer the composition. Accordingly, there is a wide variety of suitable formulations of the pharmaceutical composition of the present invention.
- the pharmaceutical composition is suitable for injection, in particular depot injection, i.e., a large single injection into a site where the composition is sequestered in the body, preferably into the buttocks or the thigh, such that a small portion of the derivative is continuously released, preferably over at least about 30 days, into the plasma until the derivative is depleted.
- depot injection i.e., a large single injection into a site where the composition is sequestered in the body, preferably into the buttocks or the thigh, such that a small portion of the derivative is continuously released, preferably over at least about 30 days, into the plasma until the derivative is depleted.
- depot injection i.e., a large single injection into a site where the composition is sequestered in the body, preferably into the buttocks or the thigh, such that a small portion of the derivative is continuously released, preferably over at least about 30 days, into the plasma until the derivative is depleted.
- a compound or composition of the present invention also can be combined
- the present invention further provides a method of using such a sustained-release derivative as a noncompetitive antagonist of a dopamine reuptake inhibitor.
- the sustained- release derivative is administered to an individual in need of such a noncompetitive antagonist.
- the sustained- release derivative is administered in a sufficient amount such that the dopamine reuptake inhibitor in the individual is antagonized over a period of time by a sustained release of the derivative during that period of time.
- the compound is administered by depot injection or transdermal patch. More preferably, the compound is administered by depot injection into the buttocks or thigh.
- the period of time of antagonism is at least about 30 days.
- the present invention also provides a method of administering to an individual, who abuses cocaine, by depot injection into the buttocks or thigh a pharmaceutical composition, which is suitable for depot injection and which comprises a sufficient amount of a Cg-2o alkanoate, C6-20 aryl alkanoate, or a C6-20 cycloalkyl alkanoate ester derivative of a hydroxylated analog of 1- [2- [bis- (4-fluorophenyl) methoxy] ethyl] -4- [3- phenylpropyl] piperazine, preferably the compound referred to herein as DBL 583 or compound 5*, scheme 1, page 53, known as (+/-) 1- [2- [bis- (4-fluoro-phenyl) methoxy] ethyl] -4- [3-phenyl-3-hydroxy-propyl] piperazine to antagonize the cocaine in the individual over a period of
- the amount of compound sufficient to antagonize a dopamine reuptake inhibitor, such as cocaine, can be determined using noninvasive methods, such as PET and SPECT, to determine the minimum receptor occupancy necessary to decrease the effect of the dopamine reuptake inhibitor, which, in the case of cocaine, for example, is drug-seeking behavior.
- noninvasive methods such as PET and SPECT
- the above compounds can be tested for in vi tro and in vivo activity in accordance with the Examples set forth below.
- a sustained-release derivative in accordance with the present invention antagonizes an inhibitor of norepinephrine reuptake and/or an inhibitor of serotonin reuptake, such a derivative
- a pharmaceutical composition comprising such a derivative, and a method of administering such a derivative are useful in the treatment of an individual who abuses amphetamines, such as methamphetamine and phencyclidine .
- Example 3 the emerging consensus that more effective pharmacotherapies may reduce drug abuse and AIDS has stimulated interest in the development of preclinical models for the evaluation of medications of potential use in the treatment of drug abuse (Mello et al . , Neuropsychopharmacology 14(6): 375-424 (1996)).
- animal models in particular drug self-administration animal models, have been studied extensively in a number of laboratories in several species and have been deemed to be valuable, especially for the evaluation of medications that substitute for or antagonize the effects of cocaine and heroin (Mello et al . (1996), supra ) .
- This example demonstrates the synthesis of a decanoate derivative of a hydroxylated analog of vanoxerine .
- NMR spectra were obtained in CDC1 3 using a Varian XL- 300 spectrometer. All new compounds gave NMR and mass spectra consistent with their assigned structures and gave C,H,N analysis within +0.4% of their calculated values. Chemical ionization mass spectra were obtained using a Finnigan 1015 mass spectrometer, and gave the expected molecular ion. Elemental analyses were performed by Atlantic Microlabs (Atlanta, GA) and were within +0.4% of calculated values for the elements indicated. Melting points were determined on a Thomas- Hoover capillary apparatus and were uncorrected.
- (+) 1- [ 2-Bis- (p-fluorophenyl) methoxy] ethyl] -4- (3- hyroxy-3-phenylpropyl) piperazine decanoate ester was prepared by treating a solution of 4 (19.4 g. 42 mmol) in 150 ml dry pentene-stabilized, ethanol-free chloroform with decanoyl chloride (9.65 g. 50 mmol, dissolved in 30 ml chloroform) . The reaction was stirred overnight at room temperature under an argon atmosphere. The reaction mixture was concentrated at reduced pressure and the oily product was dissolved in 75 ml of boiling methanol and then treated with maleic acid (11.7 g, 100 mmol) .
- Ester 5* was formulated for use in in vivo testing by addition of an equal weight of sesame oil (Sigma) to its ethereal solution, concentration at reduced pressure, and then evacuation at 0.1 Torr until constant mass was reached.
- the formulated solution was calculated as being a 49.9% w/w solution of compound 5* in sesame oil.
- Exampl e 2
- This example exemplifies the testing of a present inventive compound for biological activity in vi tro .
- the biological activity of a given compound in vi tro was tested by measuring binding of the compound to the dopamine transporter (DT) and the serotonin transporter
- Drugs and blockers were made up of 55.2 mM sodium phosphate buffer (BB) , pH 7.4, containing 1 mg/ml bovine serum albumin (BB/BSA) .
- Radioligands were made up in a protease inhibitor cocktail containing 1 mg/ml BSA (BB containing chymostatin (25 ⁇ g/ml) , leupeptin (25 ⁇ g/ml), EDTA (100 ⁇ M) and EGTA (100 ⁇ M) ) .
- the samples were incubated in triplicate for 18 to 24 hrs at 4 °C (equilibrium) in a final volume of 1 ml.
- Brandel cell harvesters were used to filter the samples over Whatman GF/B filters, which were presoaked in wash buffer (ice- cold 10 mM Tris-HCl/150 mM NaCl), pH 7.4, containing 2% polyethylenimine .
- synaptosomes were prepared by homogenization of rat caudate (DA) or whole brain minus cerebellum (5HT) in ice-cold 10% sucrose, using a Potter-Elvehj em homogenizer. After 1000 x g centrifugation for 10 min at 4 °C, the supernatants were retained on ice. The reuptake assays were initiated by the addition of 100 ⁇ l of synaptosomes to 12 x 75 mm polystyrene test tubes, which were prefilled with 750 ⁇ l
- the K m values for [ H] 5HT and [ H] DA reuptake were 17.4+0.8 nM and 38.3+1.6 nM, respectively.
- the K d values for [ 3 H]GBR 12935 and [ 125 I]RTI 55 binding were 1.35+0.14 nM and 0.91+0.04 nM, respectively. Binding data for the parent compound 4 are shown in Table II, along with the corresponding data for GBR 12909.
- This example exemplifies the testing of a present inventive compound in vivo with respect to cocaine.
- the monkeys were injected intramuscularly (thigh muscle) with 0, 1, 3 or 6 ml of 50% w/w solution of compound 5* in sesame oil.
- a 6 cc injection consisted of 3 g of compound 5* and 3 g of sesame oil.
- the monkey was run in a daily experimental session. Two monkeys were studied per dose, except for the 1 ml dose. Behavioral data were collected as the session average rate of responding for each component (food or cocaine) during individual daily sessions. Control rates were determined by averaging individual rates over the period immediately before treatment.
- Drug effects are described as the mean of individual effects (percent of control rates for both food- and cocaine-maintained responding) as a function of the dose of compound 5*. Data for the first 24 days of treatment were statistically analyzed by repeated-measure ANOVA, and subsequently partitioned by two-factor repeated-measure ANOVA.
- Figure 1 which is a graph of effect (% of control) versus dose of decanoate (DBL583, ml intramuscularly) , shows the mean effect of treatment at each dose over the first 24 days immediately following a single injection.
- Non-injection control values were stable over this treatment period with food- and cocaine-maintained responding averaging 99.9% and 100.4% of control, respectively.
- the lowest dose of compound 5* had no effect on food-maintained responding (97% of control) and slightly decreased (76.2% of control) cocaine-maintained responding, although a downward trend in drug-maintained responding was clearer during the second and third week following the injection and recovered to baseline levels on subsequent days.
- Example 4 This example exemplifies the testing of a present inventive compound in vivo with respect to methamphetamine .
- Rats were fitted with indwelling jugular catheters and intracerebral guide cannulae (CMA 12, Bioanalytical Systems, Inc., West Lafayette, IL) aimed at the nucleus accumbens (ML ⁇ 1.5, AP + 1.6, DV + 6.2 relative to bregma) (Paxinos, G., The Rat Brain in Stereotaxic
- Figure 3 is a graph of dopamine picogram/fraction) versus methamphetamine (1 mg/kg IV) over time (min) , which illustrates that compound 5* increased basal levels of dopamine (DA) two-fold and essentially eliminated the ability of methamphetamine to increase dopamine levels.
- Figure 4 is a graph of monoamine (percent of baseline) versus methamphetamine (1 mg/kg IV) over time (min) , which illustrates that compound 5* blunted the ability of methamphetamine to increase dopamine and serotonin (5-HT) .
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Abstract
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JP52077598A JP2001506978A (en) | 1996-10-31 | 1997-10-31 | Sustained-release derivatives of substituted 1- [2 [bis (aryl) methoxy] ethyl] -piperazine and -hydroxypiperazine hydroxylated analogs and their use as non-competitive antagonists in dopamine reuptake |
EP97946401A EP0937053A1 (en) | 1996-10-31 | 1997-10-31 | Sustained-release derivatives of hydroxylated analogs of substituted 1- 2 bis(aryl)methoxy]ethyl]-piperazines and -homopiperazines and their use as noncompetitive antagonists of dopamine reuptake |
AU51577/98A AU5157798A (en) | 1996-10-31 | 1997-10-31 | Sustained-release derivatives of hydroxylated analogs of substituted 1-{2{bis(aryl)methoxy}ethyl}-piperazines and -homopiperazines and their use as noncompetitive antagonists of dopamine reuptake |
CA002269328A CA2269328A1 (en) | 1996-10-31 | 1997-10-31 | Sustained-release derivatives of hydroxylated analogs of substituted 1-[2[bis(aryl)methoxy]ethyl]-piperazines and -homopiperazines and their use as noncompetitive antagonists of dopamine reuptake |
US09/269,926 US6387389B1 (en) | 1996-10-31 | 1997-10-31 | Sustained-release derivatives of hydroxylated analogs of substituted 1-[2[bis(aryl)methoxy]ethyl]-piperazines and -homopiperazines and their use |
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US3024896P | 1996-10-31 | 1996-10-31 | |
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US (1) | US6387389B1 (en) |
EP (1) | EP0937053A1 (en) |
JP (1) | JP2001506978A (en) |
AU (1) | AU5157798A (en) |
CA (1) | CA2269328A1 (en) |
WO (1) | WO1998018769A1 (en) |
Cited By (4)
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EP1553092A1 (en) * | 2002-05-08 | 2005-07-13 | Shanghai Institute of Pharmaceutical Industry | Aralkyl formyl-alkyl piperazine derivatives and their uses as cerebral nerve protective agent |
US8519159B2 (en) | 2004-04-16 | 2013-08-27 | Wayne State University | Tri-substituted 2-benzhydryl-5-benzylamino-tetrahydro-pyran-4-OL and 6-benzhydryl-4-benzylamino-tetrahydro-pyran-3-OL analogues, and novel 3,6-disubstituted pyran derivatives |
WO2015073967A1 (en) * | 2013-11-15 | 2015-05-21 | Brown Arthur M | Novel metabolites of vanoxerine compounds for the treatment of dopaminergic diseases |
EP2964611A2 (en) * | 2013-03-08 | 2016-01-13 | The United States of America, as represented by The Secretary, Department of Health and Human Services | Potent and selective inhibitors of monoamine transporters; method of making; and use thereof |
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AU2002332659A1 (en) * | 2001-08-21 | 2003-03-03 | Sepracor, Inc. | 2-substituted piperidines that are ligands for monoamine receptors and transporters |
WO2004063150A2 (en) * | 2003-01-06 | 2004-07-29 | The General Hospital Corporation | Diagnostic and therapeutic alkyl piperidine/piperazine compounds and process |
US20060122263A1 (en) * | 2003-03-28 | 2006-06-08 | Dutta Aloke K | Tri-substituted 2-benzhydryl-5-benzlamino-tetrahydro-pyran-4-ol and 6-benzhydryl-4-benzylamino-tetrahydro-pyran-3-ol analogues, and novel 3,6-disubstituted pyran derivatives |
US7381822B2 (en) * | 2004-03-31 | 2008-06-03 | The General Hospital Corporation | Diagnostic and therapeutic alkyl piperidine/piperazine compounds and process |
US20120028992A1 (en) * | 2010-08-02 | 2012-02-02 | Brown Arthur M | Pharmaceutical compositions for terminating acute episodes of cardiac arrhythmia, restoring sinus rhythm, preventing recurrence of cardiac arrhythmia and/or maintaining normal sinus rhythm in mammals |
US20150336917A1 (en) * | 2012-10-11 | 2015-11-26 | Laguna Pharmaceuticals, Inc. | Novel piperazine compounds, pharmaceutical compositions containing the same and methods of terminating acute episodes of cardiac arrhythmia, restoring normal sinus rhythm, preventing recurrence of cardiac arrhythmia and maintaining normal sinus rhythm in mammals |
WO2014059346A1 (en) * | 2012-10-11 | 2014-04-17 | Brown Arthur M | Methods for the treatment of conditions involving dopamine through administration of piperazine compounds |
WO2014059367A1 (en) * | 2012-10-11 | 2014-04-17 | Chanrx Corporation | Pharmaceutical compositions containing enantiomerically pure and/or racemic mixtures of chiral piperazine compounds and methods of terminating acute episodes of cardiac arrhythmia, restoring normal sinus rhythm, preventing recurrence of cardiac arrhythmia and maintaining normal sinus rhythm in mammals through administration of said compositions |
WO2014176497A1 (en) * | 2013-04-26 | 2014-10-30 | Chanrx Corporation | Novel metabolites of vanoxerine compounds, pharmaceutical compositions containing the same and methods of terminating acute episodes of cardiac arrhythmia, restoring normal sinus rhythm, preventing recurrence of cardiac arrhythmia and maintaining normal sinus rhythm in mammals |
WO2015119938A1 (en) * | 2014-02-05 | 2015-08-13 | Chanrx Corporation | Pharmaceutical compositions for terminating acute episodes of cardiac arrhythmia, restoring sinus rhythm, preventing recurrence of cardiac arrhythmia, and/or maintaining normal sinus rhythm in mammals |
WO2019094856A1 (en) | 2017-11-13 | 2019-05-16 | The United States Of America, As Represented By The Secretary, Department Of Health And Human Services | Atypical inhibitors of monoamine transporters; method of making; and use thereof |
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- 1997-10-31 CA CA002269328A patent/CA2269328A1/en not_active Abandoned
- 1997-10-31 AU AU51577/98A patent/AU5157798A/en not_active Abandoned
- 1997-10-31 EP EP97946401A patent/EP0937053A1/en not_active Withdrawn
- 1997-10-31 US US09/269,926 patent/US6387389B1/en not_active Expired - Fee Related
- 1997-10-31 WO PCT/US1997/019758 patent/WO1998018769A1/en not_active Application Discontinuation
- 1997-10-31 JP JP52077598A patent/JP2001506978A/en not_active Ceased
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Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
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EP1553092A1 (en) * | 2002-05-08 | 2005-07-13 | Shanghai Institute of Pharmaceutical Industry | Aralkyl formyl-alkyl piperazine derivatives and their uses as cerebral nerve protective agent |
EP1553092A4 (en) * | 2002-05-08 | 2007-06-27 | Shanghai Inst Pharm Industry | Aralkyl formyl-alkyl piperazine derivatives and their uses as cerebral nerve protective agent |
US8519159B2 (en) | 2004-04-16 | 2013-08-27 | Wayne State University | Tri-substituted 2-benzhydryl-5-benzylamino-tetrahydro-pyran-4-OL and 6-benzhydryl-4-benzylamino-tetrahydro-pyran-3-OL analogues, and novel 3,6-disubstituted pyran derivatives |
US8841464B2 (en) | 2004-04-16 | 2014-09-23 | Wayne State University | Tri-substituted 2-benzhydryl-5-benzylamino-tetrahydro-pyran-4-ol and 6-benzhydryl-4-benzylamino-tetrahydro-pyran-3-ol analogues, and novel 3,6-disubstituted pyran derivatives |
US8937189B2 (en) | 2004-04-16 | 2015-01-20 | Wayne State University | Tri-substituted 2-benzhydryl-5-benzylamino-tetrahydro-pyran-4-ol and 6-benzhydryl-4-benzylamino-tetrahydro-pyran-3-ol analogues, and novel 3,6-disubstituted pyran derivatives |
EP2964611A2 (en) * | 2013-03-08 | 2016-01-13 | The United States of America, as represented by The Secretary, Department of Health and Human Services | Potent and selective inhibitors of monoamine transporters; method of making; and use thereof |
EP2964611B1 (en) * | 2013-03-08 | 2022-10-19 | The United States of America, as represented by The Secretary, Department of Health and Human Services | Potent and selective inhibitors of monoamine transporters; method of making; and use thereof |
WO2015073967A1 (en) * | 2013-11-15 | 2015-05-21 | Brown Arthur M | Novel metabolites of vanoxerine compounds for the treatment of dopaminergic diseases |
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JP2001506978A (en) | 2001-05-29 |
AU5157798A (en) | 1998-05-22 |
CA2269328A1 (en) | 1998-05-07 |
US6387389B1 (en) | 2002-05-14 |
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