CA1080705A - Azabicycloalkanes and precursors thereof - Google Patents

Abstract

Abstract of the Disclosure:
Novel substituted azabicycloalkanes of the general formula

Description

7~i This invention relates to novel azabicycloalkanes, their intermediates, and the physiological acceptable salts thereof which are useful as analgetic agents that exhibit low physical dependence liability, to methods of preparing the same, to methods of treatment with pharmaceutically effective amounts thereof, and to pharmaceutical compositions containing such compounds as essential active ingredients.
To the best of our knowledge the compounds of this in~ention have heretofore neither been described nor suggested.
Some 5-(3-hydroxyphenyl)morphans are known to dlsplay significant morphine-like analgesic activity with low physical dependence liabili~y. The above has been reported in E. L.
May and J. G. Murphy, J. Org. Chem., 19, 615 (1954), E. L.
May and J. G. Murphy, J. Org. Chem., 20, 1197 (1955~, E. L.
Mayj J. Org. Chem., 21, 899 (1956), E. L. May and M. Takeda, J. Med. Chem., 13, 805 (1970), H. H. Ong, T. Oh-ishi, and E. L. May, J. Med. Chem., 17, 133 (1974) and M. E. Rogers and E. L. May, J. Med. Chem., 17, 1328 (1974). Medicinal Chemistry, A. Burger, Ed., Wiley-Interscience, pp 1340-1341, 1970 teaches that many morphinans of the general formula ~R

are known to possess morphine-like analgetic activity. Also it is known that reduction in size of the "C" ring of the above morphinans ~rom 6 to 5 members leads to compounds which exhibit no analgesic activity. This ring reduction effect on analgesic activity is described in the article, "The Testing : , : - . ' and Development of Analgetic Drugs", by A. H. Becket and A. F. Casey, in Progress in Medicinal Chemistry, G. P.
Ellis and G. B. West, Eds, pg 58 (1962). Additionally, Japanese patent No. 059129 issued on April 11, 1974 discloses 1-(3-oxyphenyl)-6-substituted-6-azabicyclo(3.2.1)octanes exhibiting activity as analgetics. However, the compounds of the present invention have substantial structural dif-ferences and suprisingly good analgetic activity with respect to the prior art.
This invention discloses azabicycloalkanes and intermediates thereof of the formulae Rl~<~ `R2 ,~ P`Z q wherein Rl is methoxy, hydroxy or loweralkanoyloxy; R2 is hydrogen, straight or branched chain loweralkyl, loweralkenyl, alkylcycloalkyl of ~rom 4 to 7 carbon atoms, unsubstituted and halogen substituted benzoylloweralkyl in which the sub-tituents are on the phenyl ring, unsubstituted and sub-stituted phenylloweralkyl in which the substituents are on the phenyl ring and represent chlorine, bromine, fluorine, loweralkoxy, hydroxy, nitro, amino, loweralkyl or acylamino of from 1 to 5 carbon atoms, heteroaryl loweralkyl in which the heteroaryl group is thienyl, furyl, pyridyl pyrrolyl, or pyrazinyl, or a cyano radical; X is CH2 or C=O; Y is hydrogen or bromine; m is the integer 2 or 3;
and n and q are always the same and are the integer 0 or

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-, l; and the pharmaceutically acceptable acid addition salts thereof.
Preferred compounds are those of formula B wherein Rl is methoxy, hydroxy or acetoxy; R2 is straight chain lower-alkyl, fluorobenzoylalkyl, unsubstituted and substituted - 2a -; , .

phenylalkyl, thienylalkyl, furylalkyl, loweralkenyl or alkylcycloalkyl of from 4 to 7 carhon atoms; X is CH2, m is the integer 2 and n and q are the integer 0.
Acids useful for preparing the pharmaceutically acceptable acid addition salts of the invention include mineral acids such as hydrochloric, hydrobromic, sulfuric, nitric, phosphoric and perchloric, as well as organic acids such as tartaric, citric, acetic, succinic, maleic, fumaric and oxalic.
The present invention comprises the process for the preparation of a compound of the formula A

. / 3 n (~H2)m-N \ (Br )q (A) R ~ ~

wherein Rl is methoxy, hydroxy or loweralkanoyloxy; R2 is hydrogen, straight or branched chain loweralkyl, loweralkenylt alkylcycloalkyl of from 4 to 7 carbon atoms, unsubstituted and halogen substituted benzoylloweralkyl in which the substituents are on the phenyl rin~, unsubstituted and substituted phenylloweralkyl in which the substituents are on the phenyl ring and represent chlorine, bromine, fluorine, loweralkoxy, ~. .
hydroxy, nitro, amino, loweralkyl or loweracylamino, hetero-arylloweralkyl in which the heteroaryl group is thienyl, furyl,

3 -.
,, , - - .:

. . . .
~.
.. . . ..
, pyridyl, pyrrolyl or pyrazlnyl, or a cyano radical; X is CH2 or C=O; m is the integer 2 or 3; and n and q are always the same and are the integer 0 or 1, and the pharmaceutically ac-ceptable acid addition salts thereof, in which a compound of the formula B

CH2)m-N ~

R ~ R2 (B) wherein Rl, R2 and m are as defined above, ~ represents C=O and Y represents bromine is cyclized to produce a compound of the formula A wherein q represents 1, and, to produce a compound of the formula A
wherein ~ represents 0, the resultant cyclized product is py-rolyzed; and when in the compound of the formula A, X represents C=O, the product ma~v be reduced to produce a compound of the formula A wherein X represents C~12; and, when in the compound of the formula A, Rl represents methoxy, -the product may be dealkylated to produce the corresponding phenolic compound and, when in the compound of the formula A Rl represents OH, the product may be acylated to produce the corresponding -.ester and, when in ~he compound of the formula A, R2 represents H, the product may be con- :
verted to the corresponding tertiary amine by alkylation or by acylation followed by reduction; and the compound of the formula A may be formed into a pharmaceutically acceptable salt by reaction with a pharmaceutically acceptable acid. The invention ~ - 3a -further comprises a compound o~ the formula A
whenever obtained according to the above process or by an obvious chemical equivalent thereof.
The compounds of the present invention are prepared by one of several multi-step reaction sequences as described below and illustrated in the attached flow diagram.
~1 od 1. A 2-(alkoxyphenyl)cycloalkanone, I, is reacted with a N-dimethylaminoalkyl halide in the presence or absence of a suitable organic solvent, in the presence of a base, for from a few minutes to 24 hours, at a temperature of from ambient to the boiling point of the solvent to provide a 2-(N-dimethylaminoalkyl)-2-(alkoxyphenyl)cyclo-alkanone, II. A preferred method utilizes potassium tertiary butoxide as the base and boiling 1,2-dimethoxyethane as the solvent. It will be readily appreciated by those skilled in the art that the time and temperature necessary to complete the reaction in this and subsequent steps are interrelated and dependent upon the structures and compositions of the reaction components and the solvent.
2. A bromoketone, III, is prepared by the bromina-tion of an above cycloalkanone, II, by any suitable method known to the art. One preferred method is reacting a cyclo-alkanone with a solution of bromine in glacial acetic acid at a temperature of Erom ambient to 100C.

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3. A quaternary salt, IV, is prepared by cyclizing the above bromoketone, III, by a method known to the art.
One such method is the treatment of an inorganic acid addition salt of the ketone with a mixture of ammonium hydroxide and diethyl ether~
~ The quaternary salt, IV, is converted to an oxo-2-azabicyclo compound, V. One preferred method is pyrolysis in the presence or absence of a high boiling sol-vent such as nonanol.
5~ The oxo-2-azabicyclo compound, V, is reduced by a method known to the art to provide the corresponding 2-azabicyclo compound, VI. One preferred method is sub-jecting the oxo-2-azabicyclo compound to the conditions of the Wolff-Kishner reduction.
6. The 2-azabicyclo compound, VI, is converted to the corresponding secondary amine by any method known to the art~ One preferred method is by reaction with cyanogen bromide. A corresponding secondary amine, VII, is o~tained on hydrolysis of the cyano group. One such method involves utilization of an acid such as dilute h~drochloric acid.
7. An above secondary amine, VII, is reconverted to a corresponding tertiary amine, VIII, by either alkyla-tion or acylation followed by reduction. Said conversion is effected in the presence or absence of a solvent, such as dimethylformamide, an acid scavenger such as sodium bicarbonate, an inert atmosphere such as nitrogen, and a catalyst such as potassium iodide and at a temperature from ambient to the boiling point of the solvent, for from several minutes to 24 hours. When a secondary amine is acylated the acyl compound is reduced to the corresponding alkyl or aralkyl compound. One method of reduction utilizes lithium aluminum hydride as the reducing agent~
Method B
1. A 2-(alkoxyphenyl)cycloalkanone, II, is reduced as described in Method A, step 5 to give a 2-(alkoxy-phenyl)cycloalkane, IX.
2. By the procedure outlined above in Method A, step 6, an above cycloalkane, IX, is converted to a cor-responding secondary amine~ X.
Method C
The alkoxy group of any compounds of the invention can be dealkylated by a method known to the art to provide a corresponding phenolic compound. A preferred method is dealkylating with refluxing concentrated hydrobromie acid, under an inert atmosphere such as nitrogen, for from a few -minutes to several hours.
Method D
A phenolic compound (Rl=OH) can be acylated to a corresponding ester. Preferred acylating agents are acyl halides and anh~drides in the presence o~ a base sueh as triethylamine in a solvent such as chloro~orm.
Method E
A secondary amine of formulae X, XIII, and XVI
ean be converted to a eorresponding tertiary amine of formulae XVII, XIV, and XVIII respectively, as described in Method A, step 7.

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Compounds of the invention are useful as analgesic agents due to their ability to alleviate pain in mammals.
The analge~ic utility of compounds of this invention is demonstrated in the 2-phenyl-1,4-quinone induced writhing assay in mice, a standard assay for analgesia [Proc. Soc.
Exptl. Biol. Med., 95, 729 (1957)]. Thus, for example, an approximately 50~ inhibition in writhingis effected 30 minutes after subcutaneous administration by a 0.35 mg/kg of body weight (ED50) of 2-[3-(4-fluorobenzoyl)propyl]
5-(3-hydroxyphenyl)-2-azabicyclo[3.2.1]octane. ED50's, measured at corresponding post drug time, of various other compounds of the invention are outlined below in Table I.
TABLE I

Post Drug ED
Administration 50 Time (minutes) mg/kg 5-(3-hydroxyphenyl)-2-phenyethyl-2-azabicyclo[3.2.1]octane HBr 15 0.7 2-[3-(4-fluorobenzoyl)propyl]-5-- (3-methoxyphenyl)-2-azabicyclo-20 [3.2.1]octane HBr 60 0.7 2-n-butyl-5-(3-methoxyphenyl)-2-a~abicyclo[3.2.13octane HBr 30 4.6 2-n-amyl-5-(3-methoxyphenyl)-2-azabicyclo[3.2.lJoctane HBr 30 5.0 5-(3-methoxyphenyl)-2-phenethyl-2-azabicyclo[3.2.1]octane HBr 30 5.9 2-cyclopropylmethyl-5-(3-hydroxy-phenyl)-2-azabicyclo[3.2.1]octane HBr 30 6.0 5-(3-methoxyphenyl)-2-n-propyl-2-30 azabicyclo[3.2.1]octane HBr 15 7.

5-(3-methoxyphenyl)-2-methyl-2-azabicyclo[3.2.1]octane HBr 30 7~9 5-(3-hydroxyphenyl)-2-n-propyl-2-azabicyclo[3.2.1]octane Hsr 15 8.9 2-n-butyl-5-(3-hydroxyphenyl)-2-azabicyclo[3.2.1]octane HBr 15 9.0 5-(3-hydroxyphenyl)-2-methyl-2 azabicyclo[3.2.1]octane~HBr 30 9.5 2-n-amyl-5-~3-hydroxphenyl)-2-azabicyclo[3.2.1]octane Hsr 30 11.0 2-(2-furylmethyl)-5-(3-hydroxyphenyl)-10 2-azabicyclo[3.2.1]octane-Hsr 15 22.0 2-(2-dimethylaminoethyl)-2-(4-methoxyphenyl)cyclopentanone 15 5.8 1-(2-dimethylaminoethyl)-1-(4-methoxyphenyl)cyclopentane-fumarate 30 ~- 10 1-(2-dimethylaminoethyl)-1-(3-hydroxy-phenyl)cyclopentane-HBr 90 12.5 For comparison, morphine exhibits an ED50 of 0.47 mg/kg after 30 minutes and pentazocine, a recognized effective analgesic agent and morphine antagonist exhibits ED50's of 1.5 20 mg/kg after 15 minutes and 4.8 mg/kg after 30 minutes.
The compounds of the present invention also exhibit good morphine antagonist properties. Accordingly while the compounds of the`invention are potent analgetics they also exhibit low physical dependence properties. The morphine anta-gonist properties are demonstrated in the following procedure.
A sample of 25 mg/kg of body weight of morphine sulfate and the compound of the invention to be tested are concurrently ad-ministered subcutaneously to 10 pairs of mice. The mice are then observed for inhibition of the characteristic mania (increased motor activity) normally produced in mice by morphine. Results are outlined in Table II and expressed as percent of pairs in which the mania is inhibited at a given dose level.

.

.

l'AB~E II
.
Dose(mg/kg) '% Inhibition 5-(3-methoxyphenyl)-2-methyl-2-azabicyclo[3.2.1]octane HBr 50 50 5-(3-hydroxyphenyl)-2-methyl-2-azabicyclo[3.2.1]octane HBr 50 80 5-(3-acetoxyphenyl)-2-methyl-2-azabicyclo[3,2,1]octane-HBr 50 100 5-(3-hydroxyphenyl)-2-phenethyl- 50 100 2-azabicyclo[3.2,1]octane Hsr 1 50 5-(3-methoxyphenyl)~2-methyl-2- 50 100 10 azabicyclo[3.2.1]octane~HBr 10 50 5-(3-hydroxyphenyl)-2-n-propyl-2-azabicyclo[3.2.1]octane HBr 50 100 2-cyclopropylmethyl-5-(3-hydroxy-phenyl)-2-azabicyclo[3.2.1]-15 octane HBr 25 100 2-n-amyl-5-(3-hydroxyphenyl)-2- 25 100 azabicyclo[3.2.1]octane-HBr 3 50 2-n-amyl-5-(3-methoxyphenyl)-2-azabicyclo[3.2.1]octane HBr 30 100 2-(2-furylmethyl)-5-(3-hydroxyphenyl)-2-azabicycloL3.2.1]octane HBr 25 100 2-n-butyl-5-(3-hydroxyphenyl)-2-azabicyclo[3.2.1]octane-HBr 25 100 2-n-butyl-5-(3-hydroxyphenyl)-2-25 azabicyclo[3.2.1]octane-HBr 25 100 2-n-butyl-5-(3-methoxyphenyl)-2-azabicyclo[3.2.1]octane~HBr 25 100 2-[3-(4-fluorobenzoyl~propyl]-5-(3-methoxyphenyl)-2-azabicyclo-30 [3.2.1]octane-HBr 10 100 2-[3-(4-fluorobenzyl)propyl]-5-(3-hydroxyphenyl)-2-azabicyclo-[3.2.1]octane HBr 10 100 For comparison, pentazocine, a standard analgetic which is a morphine antagonist, exhibits a 50% inhibition at a dose of ~50 mg/kg of body weight.

The above data illustrate that the compounds of the present invention are useEul as analgesic agents exhibiting low physical dependence liability when administered in amounts ranging from about 0.1 to 50 m~ per kg of body weight per day.
Further examples of compounds of the invention are:
5-(3-hydroxyphenyl)-2-[2-(2-(2-pyridyl)ethyl]-2-azabicyclo[3.2.1]octane;
5-(3-methoxyphenyl)-2-~3-Pyrazinylpropyl)-2-azabieyclo[3.2.1]octane;
2-isopropyl-5-(4-hydroxyphenyl)-2-azabicyelo-[3.2.1]octane;
2-[3-(3-chlorobenzoyl)butyl]-5-(3-methoxyphenyl)-2-azabicyclo[3~2.1]octane;
2-cyclohexylmethyl-5-(3-hydroxyphenyl)-2-azabi-cyclo~3.2.1]octane;
5-(4-methoxyphenyl)-2-(4-chlorophenethyl)-2-azabicyclo[3.2.1]octane;
2-~3-butenyl)-5-(4-methoxyphenyl)-2-azabieyelo-[3.2O1]octane;
1-[2-(N-ethyl-N-methylamino)ethyl]-1-(3-hydroxy-phenyl)cyelopentane;
6-(3-methoxyphenyl)-2-methyl-2-azabieyelo[4.2.1]-nonane;
6-(3-hydroxyphenyl) 2-[3-(nitrophenyl)propyl]~2-azabicyelo[4.2.1]nonane;
l-(N-isopropyl-N-methylaminoethyl)-1-(4-methoxy-phenyl)cyelopentane;
- _ g _ .

.

l-(N-cyclohexylmethyl-N-methylaminoethyl)-l-(4-methoxyphenyl)cyclopentane;
l~[N-(4-chlorophenethyl)-N-methylaminoethyl]-l-(4-hydroxyphenyl)cyclopentane;
1-[N-(4-fluorophenethyl)-N-methylaminoethyl]-l-(4-hydroxyphenyl)cyclopentane;
1-~3-[N-(phenethyl)-N-methylamino]propyl~
(4-methoxyphenyl)cyclopentane;
l-~N-[2-(4-chlorobenzoyl)ethyl]-N-methylamino-ethyl}-1-(4-hydroxyphenyl)cyclopentane;
2-(4-acetamidophenethyl)-5 (3-hydroxyphenyl)-2-azabicyclo[3.2.1]octane; and 2-(4-aminophenethyl)-5-(3-methoxyphenyl)-2-az`àbicyclo[3.2.1]octane.
Effective quantities of the compounds of the in-vention may be administered to a patient by any one of various methods, for example, orally as in capsules or tablets, parenterally in the form of sterile solutions or suspensions, and in some cases intraveneously in the form of sterile solutions. The free base final products, while effective themselves, may be formulated and administered in the form of their pharmaceutically a~ceptable addition salts for purposes of stability, convenience of crystallization, increased solubility and the like.
The active compounds of the present invention may be orally administered, for example, with an inert diluent or with an edible carrier, or they may be enclosed in gelatin capsules, or they may be compressed into tablets.

For the purpose of oral therapeutic admininstration, the active compounds of the invention may be incorporated with excipients and used in the form of tablets, troches, cap-sules, elixirs, suspensions, syrups, wafers, chewing gum and the like. These preparations should contain at least 0.5% of active compound, but may be varied depending upon the particular ~orm and may conveniently be between 4~ to about 70~ of the weight of the unit. The amount of active compound in such compositions is such that a suitable dosage will be obtained. Preferred compositions and preparations according to the present invention are prepared so that an oral dosage unit form contains between 1.0-300 milligrams of active compound.
The tablets, pills, capsules, troches, and the like may also contain the following ingredients: a binder such as microcrystalline cellulose, gum tragacanth or gelatin;
an excipient such-as starch or lactose, a disintegrating agent such as alginic acid, Primogel, corn starch and the like; a lubricant such as-magnesium stearate or Sterotex;
a glidant such as colloidal silicon dioxide; and a sweeten-ing agent such as sucrose or saccharin may be added or a flavoring agent such as peppermint, methyl salicylate, or, orange fla~oring. When the dosage unit form is a capsule, it may contain, in addition to materials of the above type, a liquid carrier such as a fatty oil. Other dosage unit forms may contain other various materials which modify the physical form of the dosage unit, for example, as coatings.
Thus, tablets or pills may be coated with sugar, Shellac, , ~.

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.

or other enteric coating agents. A syrup may con-tain, in addition to the active compounds, sucrose as a sweetening agent, and certain preservatives, dyes and colorings, and flavors. Materials used in preparing these various composi-5 tions should be pharmaceutically pure and non-toxic in the amounts used.
For the purpose of parenteral therapeutics admin-istration, the active compounds of the invention may be incorporated into a solution or suspension. These prepara-10 tions should contain at least 0.1~ of active compound, but may be varied to be between 0.5 and about 30% of the weight thereof. The amount of active compound in such compositions is such that a suitable dosage will be obtained. Preferred compositions and preparations according to the present 15 invention are prepared so that a parenteral dosage unit contains between 0.5 to 100 milligrams of active compound.
The solutions or suspensions may also include the following components: a sterile diluent such as water for injection, saline solution, fixed oils, polyethylene q glycolsr glycerine, propylene glycol or other synthetic solvents; antibacterial agents such as benzyl alcohol or methyl parabens; antioxidants such as ascorbic acid or sodium bisulfite; chelating agents such as ethylenediamine-tetraacetic acid; buffers such as acetates, citrates or phosphates and agents for the adjustment of toxicity such as sodium chloride or dextrose. The parenteral preparation can be enclosed in ampulesr disposable syringes or multiple dose vials made of glass or plastic.
~, '`' l ' ~ - 12 -,, , : , . ~ . .-. .:

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The invention is further illustrated by the fol-lowing examples, given for illustrative purposesD

EX~LE 1 a. 258 ml of butyllithium (2.2~; 5% excess) are slowly added with stirring to a solution of 112 g of 4-bromoanisole in 380 ml of tetrahydrofuran at -60C., followed by 70.8 g of 2-chlorocyclopentanone in 50 ml of tetrahydrofuran. The reaction mixture is stirred at -50 to -60C. for an additional hour and then allowed to warm to ambient temperatureD Xylene is introduced, and the tetra-hydrofuran is slowly distilled off. When the temperature reaches 98-lOO~C., the distlllation is stopped and the mix-ture is heated at reflux overnight. The cooled reaction mixture is treated with lN hydrochloric acid, filtered, and the organic layer separated and washed succcessively with water, dilute sodium bicarbonate solution and water and dried.

, - 12a -:~ " , ' ~ ' ,' ,. . .. . :
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The solvent is removed and the resulting oil is vacuum distilled, the main fraction being the oil, 2-(4-methoxy-phenyl)cyclopentanone, b.p. 125-128C./0.2mm.
Analysis:
Calculated for C12H14O2 Found: 75.52%C; 7.43%H.
b. To a slurry of 5.7 g of potassium t-butoxide in 1,2-dimethoxyethane is added dropwise a solution of 9.5 g of 2-(4-methoxyphenyl)cyclopentanone in 10 ml of 1,2-dimethoxy-ethane. The reaction mixture is stirred at ambient tempera-ture for 30 minutes, 5.4 g of 2-dimethylaminoethyl chloride in 5 ml of 1,2-dimethoxyethane are added and the resulting solution is stirred and refluxed overnight. The solution is cool~d, diluted with ether, and extracted with lN hydro chloric acid. The combined acid extracts are basified, extracted with ether, dried and the ether removed leaving a light orange oil which is distilled at 159-166C/0.4mm and converted to the hydrobromide salt of 2-(2-dimethyl-aminoethyl)-2-(4-methoxyphenyl)cyclopentanone, mp 157-159C.
Analysis:
Calculated for C16H23N02.HBr: 56.14%C; 7.02%H; 4.09%N; 23.39%Br.
Found: 55.22%C; 6.98%~; 4.01%N; 23.74%Br.
By following the manipulative procedure described above in step a, 41.1 g of 3-bromoanisole, 114 ml of butyl-lithium (2.2M; 0.25 mole), and 23.7~gm of 2-chlorocyclo-pentanone are reacted to give a pale yellowish oil, b.p.
125-127C./0.3mm., 2~(3-methoxyphenyl)cyclopentanone.

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: . : : : :

EXAMPLES 2 ~ 3 By following the manipulative procedure described above in Example ltb), novel compounds listed in Table III
are produced by the reaction of 2-(3-methoxyphenyl)cyclo-pentanone with 3-dimethylaminopropyl chloride and 2-dimethyl-aminoethyl chloride respectively.
TAsLE III
Analysis Empirical mp/bp(mm) Calculated Found Ex. Formula C %C %H %N %C %H %N
_ 2 C17H25NO2 137-140 74.14 9.15 5.08 74.20 9.37 4.98 (0.2mm) -3 C16H23NO2 HBr 158-159 56.14 7.07 4.09 S6.20 7.17 4.08 .

A suspension of 1.37 g of 2-(2-dimethylaminoethyl)-2-(3-methoxyphenyl)cyclopentanone (Example 3) in 5 ml of ~lacial acetic acid is heated gently on a stream bath to e~fect a clear solution. To the warm stirred solution is slowly added 0.70 g o bromine in 10 ml of glacial acetic acid and the sol~ltion is allo~ed to stand at ambient temperature overnight. The reaction mixture is diluted with ether and an oily residue separates which is crystallized from an acetone-ethyl acetate-ether mixture to give fluf~y needles, np 110 113C., of 5-bromo-2-(2-dimethylaminoethyl)-2-(3-methoxyphenyl)cyclopentanone hydrobromide.
Analysis:
Calculated for C16H22BrNO2 HBr: 45.63%Ci 5.50%H; 3-32%N~
Found: 46.49%C; 5.77%H; 3.21%N.

.. ~ .:

r , ~ ' In addition 2-(3-dimethylaminopropyl)-2-(3-methoxyphenyl)c~clopentanone (Example 2) can be treated according to the above procedure to give 5-bromo-2-(3-dimethylaminopropyl)-2-(3-methoxyphenyl)cyclopentanone.

A solution of 1.71 g of 2-(2-dimethylaminoethyl)-2-(4-methoxyphenyl)cyclopentanone (Example 1) in 15 ml of . ~ O
chloro~orm is cooled to 5 C. and to it is added dropwise a solution of 0.80 g of bromine in 15 ml of chloroform. The reaction mixture is allowed to stir overnight. The solvent and excess bromine are removed under reduced pressure, `
leaving a glassy residue which is recrystallized from an acetone-ethyl acetate mixture to give crystals, mp 146-147 C., dec, of 5-bromo-2-(2-dimethylaminoethyl)-2-14-methoxyphenyl)cyclopentanone hydrobromide.Analysis:
Calculated for cl6H22srNo2 HBr: 45.63%C; 5.50%H; 3.32%N; 37.93~Br Found: - ~5.72%C; 5.59%H; 3.44%N; 37.67%Br To a suspension of 0.88 g of 5-bromo-2-(2-dimethyl-aminoethyl)-2-(3-methoxyphenyl)cyclopentanone hydrobromide (Example 4) in 50 ml of ether and 10 ml of water is added dropwise n. 8 ml o~ concentrated ammonia. The mixture is shaken vigorously and the ether layer is separated. The ether layer is driedl and the ether removed leaving a semi-solid residue. Acetone i5 added to the residue and the mix-ture is stirred at reflux for 2 hrs. Upon cooling, the quaternary salt precipitates from the acetone and is re-- . : .. . .

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crystallized from absolute ethanol to give colorless prisms, mp 244-245 CD ~ dec, of 5-(3=metho~yphenyl)-2-methyl-8-oxo-2-azabicyclo[3.2.1~octane methobromide.
Analysis: -Calculated for C16H22BrNO2: 56.47~C; 6.52%H; 4.11%N; 23.48%sr.
Found: 56.48%C; 6.59%H; 3.98~N; 23.30~sr.
In addition 5-bromo-2-(3-dimethylaminopropyl)-2-(3-methoxyphenyl)cyclopentanone can be treated according to the above procedure to give 6-(3-methoxyphenyl)-2-methyl-9-oxo-2-azabicyclo~.2.1]nonane methobromide.
EX~MPLE 7 A solution of 1.7 g of 5-bromo 2-dimethylamino-ethyl-2-(4-methoxyphenyl)cyclopentanone hydrobromide (Example 5) in 10 ml of water is stirred vigorously while 1 ml of concentrated ammonia is added dropwise. Crystals begin to deposit after a few minutes and stirring is con-tinued for an additional 2 hours. The mixture is filtered and the residue is dried and recrystallized from 95%
ethanol to give shiny plates, mp 255-258 C., dec, of 5-(4-20 methoxyphenyl)-2-methyl-8-oxo-2-azabicyclo[3.2.1]octane methobromlde.
Analysis:
Calculated for C16H22BrNO2 : 56.~7~C; 6.52~H; 4.11~N; 23.48~Br.
Found: 56.30~C; 6.53~H; 4.03~N; 23.35~Br.

1.4 g of finely powdered 5-(3-methoxyphenyl)-2-methyl-8-oxo-2-azabicyclo~3.2.1]octane methobromide (Example 6) are pyrolized in vacuo. As the heating bath temperature ,' :, . : ' ~ ' ' .
. .
.

.

-is raised to 250 C., liquid appears which is rapidly distilled.
The condens~te is redistilled to give a pale yellowish oil, bp 135-138 C./0.3mm of 5-(3-methoxyphenyl)-2-methyl-8-oxo-2 azabicyclo[3O2.1]octane.
S Analysis:
Calculated for C15HlgNO : 73.44%C; 7.80%H; 5.71%N.
Found: 73.16%C; 8.0~%H; 5.75%N.
In addition 6-(3-methoxyphenyl)--2-methyl-9-oxo-2-azabicyclo[4.2.1]nonane methobromide is subjected to a similar thermal pyrolysis just above its melting point, to produce 6-(3-methoxyphenyl)-2-methyl-9-oxo-2-azabicyclo[4.2.1]
nonane.

By following a similar procedure to the manipula-tive procedure outlined above in example 8, 5-(4-methoxy-phenyl)-2 methyl-oxo-2-azabicyclo[3.2.1]octane metho-bromide (Example 7) produces~an oil. The oil gradually solidifies to give chunky crystals, mp 96-97 C., of 5-(4-methoxyphenyl)-2-methyl-8-oxo-2-azabicyclo[3.2.1]octane.
Analysis:
Calculated ~or C15HlgNO2: 73~44%C; 7-80%H; 5-71%N-Found: 73.47%C; 7.92%H; 5.71%N.

A mixture of 5.5 g of 5-(3-methoxyphenyl)-2-methyl-8-oxo-2-azabicyclo[3.2.1]octane (Example 8) 5.5 ml of 95~ hydrazine hydrate, 5.5 g of potassium hydroxide and 35 ml of triethylene glycol is stirred at a temperature O O
of 160-165 C. for ~ hours and then at 190 C. for an addi-:~ - . . .
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tional hour. The mixture is cooled, diluted with water and extracted with ether. The combined ether extracts are washed with water, dried, and the ether removed leaving an oil which is converted to the hydrobromide salt and re-crystallized from an acetone-ether mixture to give fine needles, mp 175-177 C., of 5-~3-methoxyphenyl)-2 methyl-2 azabicyclo[3.2.1~octane hydrobromide.
Analysis:
Calculated for C15H21NO.HBr: 57.70%C; 7.10%H; 4.48%N; 25.58%Br.
Found: 57.61%C; 7.12%H; 4.47%N; 25.57%Br.
In addition 6-(3-methoxyphenyl)-2-methyl-9-oxo-2-azabicyclo[4.2.1~nonane is treated according to the above procedure to give 6-(3-methoxyphenyl)-2-methyl-2-azabicy-clo[4.2.1]nonane hydrobromide.
EXP~LE 11 By the following the manipulative procedure outlined above in Example 10, a sample of 5-(4-methoxyphenyl)-2-methyl-8-oxo-2-azabicyclo[3.2.1~octane produces granules, mp 188-190 C., of 5-(4-methoxyphenyl)-2-methyl-2-azabicyclo-[3.2.1]octane hydrobromide.Analysis:
Calculated for C15H21NO HBr: 57.70%C; 7.10%H; 4.48%N; 25.58%Br.
Found: 57.41%C; 7.20%H; 4.44%N; 25.63%Br.

A solution of 4.16 g of 5-(3-methoxyphenyl)-2-methyl-2-azabicyclo[3.2.1]octane (the free base of Example 10) in 35 ml of chloroform is added dropwise to a stirred solution of 2.1 g of cyanogen bromide in 15 ml of chloro-,~ -18-: :

:
' .
- : . , form, followed by refluxing for 3 hours and evaporation to dryness. Ethanol is added to the residue and this solution is evaporated to dryness leaving a residue which is recrystal-lized from an ether~hexane mixture to give needles, mp 96-97 C., of cyano-5-(3-methoxyphenyl)-2-azabicyclo[3.2.1]-octane.
Analysis:
Calculated for C15H18N2O 74.37%C; 7.48%H; 11.56%N.
Found: 74.11%C; 7.59%H; 11.59%N.

A solution of 0.34 g of 2-cyano-5-(3-m~thoxyphenyl)-2-azabicyclo[3.2.1]octane (Example 12) in 25 ml of 5% hydro-chloric acid is refluxed for 18 hours. The solution is cooled~ basified with sodium hydroxide and extracted with ether. The ether solution is dried and concentrated leaving an oil which is converted to its hydrobromide salt. Crystal-lization from an acetone-ethyl acetate mixture gives coloFless crystals, mp-137.5-138.5 C., of 5-(3-methoxyphenyl)-2-azabicyclo~3.2.1]octane hydrobromide.
Analysis:
Calculated for C14HlgNO~HBr: 56.37%C; 6.76%H; 4.69%N; 26.79%Br.
Found: 56.28%C; 6.78%H; ~.60%N; 26.98%Br.
~ EXAMPLE; 14 . .
A mixture of 1.3 g of 5-(3-methoxyphenyl)-2-aza-bicyclo[3.2.1]octane (the free base of Example 13) 1.0 g of l-bromopentane, 1.0 g of sodium bicarbonate and 1.1 g of potassium iodide in 15 ml of dimethylformamide is stirred at 80 C. for 16 hours. The mixture is filtered and the .. . . .

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filtrate is concentrated leaving an oily residue. The resi-due is purified by column chromatography over alumina, with ether as the eluant. The thus purified product is converted to the hydrobromide salt and recrystallized from an acetone-5 ether mixture to give rosettes, mp 144.5-146.5 C., of 2-n-amyl-5-(3-methoxyphenyl)-2-azabicyclo[3.2.1]octane hydro-bromide.
Analysis:
Calculated for C19H29NO HBr: 61.95%C; 8.20%H; 3.80%N; 2l.6g%Br.
10 Found: 61.93%C; 8.27%H; 3.92%N; 22~04%Br.

By following procedures similar to the manipula-tive procedure outlined above in Example 14, a sample of 5-(3-methoxyphenyl)-2-azabicyclo[3.2.1]octane (the ~ree base of Example 13) is treated with n-propyliodide~ l-bromo-butane, and iodoethane, respectively, to give the compounds listed below in Table IV.

TABLE IV

Analysis Empirical m.p. Calculated Found Ex Formulà C %C %H %N %Br %C %H %N %Br 15 C17H25N HBr 223-224 60.00 7.70 4.11 23.47 l60.06 7.89 4.03 23.60 . .
16 18 27 216-217 61.02 7.96 3.95 22.55 60.91 8.13 3.92 22.71 17 16 23 148-149 58.89 4.29 24 49 ~ 7 60 4.27 .,: . . . .
' EXA~æ~E 18 To a solution of 1.1 g of 5-(3-methoxyphenyl)-2-azabicyclo[3.2.1]octane (the free base of Example 13) and 0.75 g of triethylamine in 15 ml of chloroform is added drop-wise 0.93 g of phenylacetyl chloride. The reaction solutionis stirred overnight at ambient temperature, the solution is extracted with 10% hydrochloric acid, 10% sodium hydroxide and water, dried and evaporated to dryness leaving an amide as an oily residue. The amide is reduced to the amine with lithium aluminum hydride. The hydrobromide salt is prepared and recrystallized from a methanol-acetone-ether solution to~
give silky needles, mp 188-189 C., of 5-(3-methoxphenyl)-2-phenethyl-2-azabicyclo[3.2.1]octane hydrobromide.
Analysis:

Calculated for C22H27NO ~Br: 65.65%C; 7.01%H; 3.48~N.
Found: 65.72%C; 6.92%~; 3.37%N.
In addition 2-furylacetyl chloride can be substi-tuted in the above procedure to give 2-[2-(2-furyl)ethyl]-5-t3 methoxyphenyl)-2-azabicyclo[3.2.1]octane.

EXP~1PLE 19-24 ~ By following similar procedures to the manipula-tive procedure outlined above in Example 18, a sample of 5-(3-methoxyphenyl)-2-azabicyclo[3.2.1]octane (the free base of Example 13) is treated with 2-thienylacetyl chloride,

4-chlorophenylacetyl chloride, 4-methoxphenylacetyl chloride, 4-methylphenylacetyl chloride, 3-chlorophenylacetyl chloride, and 3,4-dichlorophenylacetyl chloride, respectively, to give the compounds listed below in Table V.

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TABLE V

Analysis Empirical m.p. Calculated Found Ex.Formula C %C %H %N %Br %C - %H %N %Br 19 C20H2sNOS HBr ¦173-175 58.33 6.42 3.43 19.59 58.80 6.51 3.45 19.65 _ _ .
C22H26ClNO-HBr 204-206 60.48 6.23 3.21 18.29 60.70 6.24 3.22 18.33 _ 21 C23H29NO2 HBr 201-202 63.87 6.99 3.Z4 18.48 63.86 7.01 3.21 18 47 22 C23H29N HBr 203.5- 66.33 7.26 3.36 19.19 66.55 7,32 3.28 19 25 23 C22H26ClNO~HBr 225-227 60 48 6.23 3.21 18.29 60.35 6.32 3.10 24 C22H25C12N~ HBr 239-240 56.05 5.56 2.97 16.95 56.19 5.51 3.07 16.87 ~............... . . l A mixture of 1.0 g of 5-(3-methoxyphenyl)-2-aza-bicyclo[3.2.1]octane (the free base of Example 13) 1.5 g of ~-chloro-4-fluorobutyrophenone ethylene glycol ketal, 1.0 g of sodium bicarbonate and 1.0 g of potassium iodide in 15 ml of dimethylformamide is stirred at 80 C. for 16 hours.
The mixture is filtered and the filtrate concentrated to an oily residue. An ethanolic solution of hydrogen chloride is added and the solution is stirred at ambient temperature until complete hydrolysis of the ketal is effected. The solution is basified and extracted with methylene dichloride, dried and concentrated. The residue is purified by column chromatography over alumina with ether as the eluant. The eluate is concentrated to a colorless oil, converted to a crystalline hydrobromide, and recrystallized from a methanol-ether mixture to give shiny plates, mp 194-196C., of :,. ' ~ ' 2-[3 l4-fluorobenzoyl)propyl]-5-(3-methoxYPhenyl)-2-azabi-cyclo[3.2.1]octane hydrobromide.
Analysis:

Calculated for C24H2gFNO2 HBr: 62.32%C; 6.32%H; 3.03%N; 17.28%Br.

4.54%F;

Eound:62.39%C; 6.38%H; 2.99%N; l7.5l%sr.
4.51%F;

A suspension of 1.0 g of 5-(3-methoxyphenyl)-2-phenethyl-2-azabicyclo[3.2.1]octane hydrobromide (Example 18) in 15 ml of 48% hydrobromic acid is stirred at reflux for 1 hour. The cooled mixture is filtered to give tannish crystals which are recrystallized from a methanol-acetone mixture to give crystals, mp 212-213 C., of 5-(3 hydroxy-phenyl)-2-phenethyl-2-azabicyclo[3.2.1]octane hydrobromide.

Analysis:
Calculated for C21H25NO HBr: 64.95%C; 6.75%H; 3.60%N; 20.58%Br.
Found:64.80%C; 6.76%H; 3.48%N; 20.47%Br.

By following the manipulative procedure outlined in Example 26, the phenolic compounds listed in Table VI
are prepared.

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A suspension of 730 mg of 5-(3-hydroxyphenyl)-2-azabicyclo[3.2.1]octane (the free base of Example 27) and 576 mg of sodium bicarbonate in 8 ml of dimethylforma-mide is stirred for 30 minutes and 38B mg of dimethylallylbromide in 2 ml of dimethyformamide is added over a 5 minute span~ The mixture is stirred, under nitrogen, at 90-100C., for 4 additional hours and then filtered. The filtrate is concentrated to a semicrystalline residue which is purified by column chromatography over alumina with ether as the eluant. The purified tertiary amine is converted to its hydrobromide which is recrystallized from an ethanol-ether mixture to give shiny prisms, mp 215-216 C., dec, of 2-dimethylallyl-5-t3-hydroxyphenyl)-2-azabicyclo-[3.2.1]octane hydrobromide.Analysis:
- Calculated for Clg~25N0 HBr: 61.36~C; 7.44~H; 3.97%N; 22.68%Br.
Found: 61.14~C; 7.52~H; 3.89%N; 22.47%sr.

By following the manipulative procedure outlined above in Example 14, a mixture of 6.8 g of 5-(3-hydroxy-phenyl)-2-azabicyclo[3.2.1]octane hydrobromide (Example 27) 102 g of anhydrous potassium carbonate, 0.38 ~ of cyclo-propylmethyl bromide and a few crystals of potassium idodide in 10 ml of dimethylformamide produces off-white crystals, mp 252-253 C., of 2-cyclopropylmethyl-5-(3-hydroxyphenyl)-2-azabic~clo[3.2.1]octane hydrobromide, Analysis:
Calculated for C17H23NO HBr: 60.36~C; 7.15~H; 4~14%N; 23.62%sr.
Found: 60.19%C; 7.23%H; 3.96~N; 23.61%Br.

A suspension of 1.13 g of 5-(3-hydroxphenyl)-2-azabicyclo[3.2.1]octane hydrobromide (Example 27) 5 ml of triethylamine and 8 ml of chloroform is stirred and treated dropwise with 0.67 g of 2-furoyl chloride. ~fter total addition the mixture is stirred overnight at ambient tempera-ture. The reaction mixture is concentrated to dryness, chloroform added, the chloroform solution washed successively with dilute hydrochloric acid, dilute sodium bicarbonate, and water, and dried. The solvent is removed, and the residual amide is reduced with a solution of lithium alum-inum hy~ride in tetrahydrofuran and a hydrobromide prepared which is recrystallized from a methanol-ether mixture to give granules, mp 226-228 C., of 2-(2-furylmethyl~-5-(3-hydroxyphenyl)-2-azabicyclo[3.2.1]octane hydrobromide.
Analysis.
20 Calculated for C18H21NO2 HBr: 59.34%C; 6.08~H; 3.8~%N; 21.93%Br.
Found: 59.06%C; 5.89%H; 3.75%N; 2l.49%sr.
In addition, by following the above manipulative procedure, substituting 2-furylacetyl chloride for 2-~furoyl chloride produces 2-~2-(2-furyl)ethyl]-5-(3-hydroxy-phenyl)-2-azabicyclo[3.2.1~octane.

The free base prepared from 0.5 g of 5-(3-hydroxy-phenyl)-2-methyl-2-azabicyclo[3~2.1]octane hydrobromide , ~ .

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(Example 31) is heated with 10 ml of acetic anhydride at 90-100C. for 1 hour. The liquid is removed leaving a residue that is converted to the hydrobromide salt and is recrystallized from an acetone-ethyl acetate mixture to 5 give white crystals, mp 152 153C., of 5-(3-acetoxyphenyl)-2-methyl-2-azabicyclo[3.2.1]octane hydrobromide.
Analysis:
Calculated for C16H21NO2~HBr: 56.47%C; 6.51%H; 4.11%N; 23.48%Br.
Eound: 56.29%C; 6.59%H; 4.09%N; 23.54%Br.

By following the manipulative procedure outlined above in Example 10, 5.0 g of 2-(3-dimethylaminopropyl)-2-(3-methoxyphenyl)cyclopentanone (Example 2) produces an oil which is distilled to a colorless oil, bp 120-122C./0.33mm., of 1-(3-dimethylaminopropyl)-1-(3-methoxyphenyl)cyclopentane.
Analysis: -Calculated for C17H27NO: 78.12%C; 10.41%H; 5.36%N.
Found: 77.95%C; 10.55~H, 5.44~N.

A solution of 2.50 g o~ 2-(2-dimethylaminoethyl)-2-(4-methoxyphenyl)cyclopentanone (Example 4) 3 ml of 95%
hydrazine hydrate and 20 ml of triethylene glycol is `
treated according to the manipulative procedure of example 10, to produce an oil. The oil is converted to the white 25 fumarate salt, mp 157-158C., 1-(2-dimethylaminoethyl?-1-(4-methoxyphenyl)cyclopentane fumarate.

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Analysis:

16 25N0 C4H404: 66.09%C; 8. 04~H; 3 85%N
Found:66.42%C; 8.10~H; 3.78~N~

5 By following the manipulative procedure described above in Example 10, 8. 0 g of 2-(2-dimethylaminoethyl)-2-(3-methoxyphenyl)cyclopentanone (the free base of Example 3) 8 ml of 95~ hydrazine hydrate, 8. 0 g of potassium hydroxide and 60 ml of triethylene glycol to gi~e a color-10 less oil, bp 110-112C/~.33mm., of 1-(2-dimethylamino-ethyl)-l-(3-methoxyphenyl)cyclopentane. The hydrobromide i5 prepared and recrystallized from a methanol-acetone-eiher mixture to give shiny plates, mp 170-172C.
Analysic:
15 Calculated for C16H25NO HBr: 58.54%C; 7.98~; 4.26%N; 24.34%Br.
Found58 . 33%C; 7.97%H; 4.25%N; 24.32%Br.

.... .. .
By following the manipulative procedure outlined above-in Example 12, a solution of 5.43 g of 1-(2-dimethyl-aminoethy~ (4-methoxyphenyl)cyclopentane (the free base of Example 46) in chloroform is added to a stirred solution of 2.57 g of cyanogen bromide in chloroform to give an oil.
The oil is dissolved in chloroform, subjected to column chromatography with a silica gel column and eluted with ether to produce an orange oil oE l-(N-cyano-N-methylamino-ethyl)-1-~4-methoxyphenyl)cyclopentane.
Analysis:

~, - 28 -., --: . ' ' - . - : : ~ - ~ .:

Calculated for C16H22N2O: 74.38~C; 8.58%H; 10.85%N.
Found: 74.02%C; 8.67%H; 10.73~N.

By following the manipulative procedure outlined above in Example 13, a solution of 4.24 g of l-(N-cyano-N-methylaminoethyl)-1-(4-methoxyphenyl)cyclopentane (Example 48) and 40 ml of 5% hydrochloric acid is ~reated to give the white salt, mp 158-159 C., of 1-(4-methoxyphenyl)-1-(2-methylaminoethyl)cyclopentane hydrobromide.
Analysis:
Calculated for C15H23NO~HBr: 57.32%C; 7.70%H; 4.46%N. ?5.43%Br.
Found: 57.04~C; 7.72%H; 4.41~N; 25.51%Br.

EX~PLE 50 By following sequentially the manipulative pro-cedures outlined above in Examples 12 and 13, a sample of 1-(3-dimethylaminopropyl)-1-(3-methoxyphenyl)cyclopentane (Example 45) is converted to the solid, mp 106.5-108 C., 1-(3-methoxyphenyl)-1-(3-methylaminopropyl)cyclopentane hydrochlori,de.
Analysis:
Calculated for C16H25NO ~Cl: 67.71%C; 9.23%H; 4.92%N; 12.49%Cl.
Found; 67.14%C; 9.42%H; 4.82%N; 12.71%C~.
EXP~LE 51 By following the manipulative procedure outlined above in Examples 48 and 49, 2.5 g of 1-(2-dimethylaminoethyl)-1-(3-methoxyphenyl)cyclopentane hydrobromide tExample 47) produces a hydrobromide which is recrystalIized from an acetone-ether mixture to give shiny plates~ mp 143-144C., .

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Analysis:
Calculated for C15H23NO-HBr: 57.33%C; 7.69%H; 4.45%N; 25.42~Br-Found: 57.19%C; 7.63%H; 4.40%N; 25.50%Br.

By following the manipulative procedure outline~
above in Example 26, the phenolic compounds listed in Table VI are prepared.

By following the manipulative procedure outlined above in Example 1~ a solution of 1.7 g of 1-(3-hydroxy-phenyl)-l-(3-methylaminopropyl)cyclopentane (the free base of Example 56) 2.4 g of triethylamine in 30 ml chloroform and 2.2 g of cyclopropylcarbonyl chloride in 5 ml of chloro-form are reacted to produce the crude hydrochloride which is recrystallized from an acetone-ether mixture to give rhombic crystals, mp 93-94C., of l-[3-(N-cyclopropylmethyl-N-methyl)aminopropyl]-1-(3-hydroxyphenyl)cyclopentane hydrochloride.
Analysis:
Calculated for ClgH29NO-HCl: 70.45%C; 9.93%H; 4.33~N.
Found: 70.37%C; 9.42%H; 4.30~N.
` EXAMPLE 60 By following the manipulative procedure outlined above in Example 25, substituting 1-(2-dimethylaminoethyl)-1-(4-methoxyphen~l)cyclopentane (the free base of Example 49) for 5-(3-methoxyphenyl)-2~azabicyclo[3.2.1]octane produces the salt, mp 144-145C., of l-{N-[3-(4-fluoro-~.
' ~ :. ', ''' ' ., ' : ,. . .,, ~,, S benzoyl)propyl]propyl~-N-methylaminoethyl}-1-(4-methoxyphenyl)-cyclopentane hydrobromide.
Analysis:
Calculated for C25H32FNO2 HBr: 62.76~C; 6.95%H; 2.93%N.
Found: 63.01%C; 7.03~I; 2.86%N.

A mixture of 2.0 g of 1-~N-[3-(4-fluorobenzoyl)-propyl]-N methylaminoethyl}-1-(4-methoxyphenyl)cyclopentane hydrobromide (Example 60) and 20 ml of 48% hydrobromic acid is refluxed for 1 hour. Then the mixture is diluted with ice water and evaporated. The residue is dissolved in 30 ml of 200 proof ethanol and 15 ml of chloroform, and the mixed solvent removed leaving a tan solid which is triturated with ether, filtered and dried to give a solid. The solid is recrystal-lized from a methanol-acetone-ether mixture to give the product, mp 191-192C., of l-~N-[3-(4-fluorobenzoyl)propyl]-N-methylaminoethyl}-1-(4-hydroxyphenyl)cyclopentane hydro-bromide.
Analysis:
Calculated for C24H30FNO2 HBr: 62.06%C; 6.73%H; 3. 02~No Found: 62.08%C; 6~78~H; 2.91%N.

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Claims (46)

THE EMBODIMENTS OF THE INVENTION IN WHICH AN EXCLUSIVE
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:

1. A process for the preparation of a compound of the formula A

(A) wherein R1 is methoxy, hydroxy or loweralkanoyloxy; R2 is hydrogen, straight or branched chain loweralkyl, loweralkenyl, alkylcycloalkyl of from 4 to 7 carbon atoms, unsubstituted and halogen substituted benzoylloweralkyl in which the substi-tuents are on the phenyl ring, unsubstituted and substituted phenylloweralkyl in which the substituents are on the phenyl ring and represent chlorine, bromine, fluorine, loweralkoxy, hydroxy, nitro, amino, loweralkyl or loweracylamino, hetero-arylloweralkyl in which the heteroaryl group is thienyl, furyl, , or a cyano radical; X is CH2 or C=O; m is the integer 2 or 3; and n and q are always the same and are the integer 0 or 1, and the pharmaceutically ac-ceptable acid additlon salts thereof, in which a compound of the formula B

(B) wherein R1, R2 and m are as defined above, X represents C=0 and Y represents bromine is cyclized to produce a compound of the formula A wherein q represents 1; and, to produce a compound of the formula A wherein q represents 0, the re-sultant cyclized product is pyrolyzed; and,to produce a compound of the formula A wherein X represents CH2, a compound of formula A, wherein X represents C=0, is reduced; and, a compound of the formula A, wherein R1 represents methoxy, may be dealkylated to produce the corresponding phenolic compound; and, a compound of the formula A, wherein R1 represents OH, may be acylated to produce the corresponding ester; and, a compound of the formula A, wherein R2 represents H, may be converted to the corresponding tertiary amine by alkylation or by acylation followed by reduction; and the compound of the formual A may be formed into a pharmaceutically acceptable salt by reaction with a pharmaceutically acceptable acid.

2. A process as claimed in claim 1 in which the com-pound of the formula B wherein X represents C=0 is prepared by a process in which a 2-(alkoxyphenyl) cycloalkanone is reacted with a N-dialkylaminoalkyl halide in the presence of a base and in a solvent at a temperature of from ambient tem-perature to the boiling point of the solvent, and the so obtained 2-(N-dimethylaminoalkyl)-2-(methoxyphenyl) cyclo-pentanone is reacted with bromine by any suitable method known to the art.

3. A process as claimed in claim 2 in which the base is potassium tertiary butoxide.

4. A compound of the formula A as defined in claim 1, whenever obtained according to a process as claimed in claim 1, claim 2 or claim 3 or by an obvious chemical equivalent thereof.

5. A process as claimed in claim 1 in which the cycli-zation is accomplished by reaction with a mixture of ammonium hydroxide and diethyl ether.

6. A compound of the formula A as defined in claim 5, whenever obtained according to a process as claimed in claim 5 or by an obvious chemical equivalent thereof.

7. A process as claimed in claim 1 for the preparation of a compound of the formula A

(A) wherein R1 represents methoxy, hydroxy or acetoxy, R2 repre-sents hydrogen, straight chain alkyl of from 1 to 5 carbon atoms, dimethylallyl, cyclopropylmethyl, 4-fluorobenzoylpropyl, unsubstituted and substituted phenylethyl in which the substi-tuents are on the phenyl ring and represent chlorine, methoxy, hydroxy or methyl, thienyl ethyl, furylethyl or a cyano radi-cal; X represents CH2; m is the integer 2 and n and q are both the integer 0.

8. A compound of the formula A as defined in claim 7, whenever obtained according to a process as claimed in claim 7 or by an obvious chemical equivalent thereof.

9. A process as claimed in claim 1 for the preparation of 5-(3-hydroxyphenyl)-2-n-propyl-2-azabicyclo[3.2.1]octane in which 5-bromo-2-(2-dimethylaminoethyl)-2-(3-methoxyphenyl)-cyclopentanone hydrobromide is cyclized by treatment with a mixture of ammonia and diethyl ether, the resultant 5-(3-methoxy-phenyl)-2-methyl-8-oxo-2-azabicyclo[3.2.1]octane methobromide is pyrolized in vacuo, the resultant 5-(3-methoxyphenyl)-2-methyl-8-oxo-2-azabicyclo[3.2.1]octane is reduced by heating with hydrazine, potassium hydroxide and triethylene glycol, the resultant 5-(3-methoxyphenyl)-2-methyl-2-azabicyclo[3.2.1]-octane is treated with cyanogen bromide and subsequently hydro-lyzed, the resultant 5-(3-methoxyphenyl)-2-azabicyclo[3.2.1]-octane is treated with n-propyl iodide in a solvent in the presence of sodium bicarbonate and potassium iodide and the resultant product is refluxed with concentrated hydrobromic acid and the product is subsequently isolated.

10. 5-(3-Hydroxyphenyl)-2-n-propyl-2-azabicyclo[3.2.1]-octane, whenever obtained according to a process as claimed in claim 9 or by an obvious chemical equivalent thereof.

11. A process as claimed in claim 1 for the preparation of 2-n-amyl-5-(3-hydroxyphenyl)-2-azabicyclo[3.2.1]octane in which 5-bromo-2-(2-dimethylaminoethyl)-2-(3-methoxyphenyl)-cyclopentanone hydrobromide is cyclized by treatment with a mixture of ammonia and diethyl ether, the resultant 5-(3-methoxyphenyl)-2-methyl-8-oxo-2-azabicyclo[3.2.1]octane metho-bromide is pyrolyzed in vacuo, the resultant 5-(3-methoxyphenyl)-2-methyl-8-oxo-2-azabicyclo[3.2.1]octane is reduced by heating with hydrazine, potassium hydroxide and triethylene glycol, the resultant 5-(3-methoxyphenyl)-2-methyl-2-azabicyclo[3.2.1]-octane is treated with cyanogen bromide and subsequently hydro-lyzed, the resultant 5-(3-methoxyphenyl)-2-azabicyclo[3.2.1]-octane is treated with 1-bromopentane in a solvent in the pre-sence of sodium bicarbonate and potassium iodide and the pro-duct is refluxed with concentrated hydrobromic acid and the resultant product is subsequently isolated.

12. 2-n-Amyl-5-(3-hydroxyphenyl)-2-azabicyclo[3.2.1]-octane, whenever obtained according to a process as claimed in claim 11 or by an obvious chemical equivalent thereof.

13. A process as claimed in claim 1 for the preparation of 2-cyclopropylmethyl-5-(3-hydroxyphenyl)-2-azabicyclo-[3.2.1]-octane in which 5-bromo-2-(2-dimethylaminoethyl)-2-(3-methoxy-phenyl)cyclopentanone hydrobromide is cyclized by treatment with a mixture of ammonia and diethyl ether, the resultant 5-(3-methoxyphenyl) 2-methyl-8-oxo-2-azabicyclo[3.2.1]octane methobromide is pyrolyzed in vacuo, the resultant 5-(3-methoxy-phenyl)-2-methyl-8-oxo-2-azabicyclo[3.2.1]octane is reduced by heating with hydrazine, potassium hydroxide and triethylene glycol, the resultant 5-(3-methoxyphenyl)-2-methyl-2-azabicyclo-[3.2.1]octane is treated with cyanogen bromide and subsequent-ly hydrolyzed, the resultant 5-(3-methoxyphenyl)-2-azabicyclo-[3.2.1]octane is refluxed with concentrated hydrobromic acid, and the product is reacted with anhydrous potassium carbonate, cyclopropyl bromide and potassium iodide and the resultant product is subsequently isolated.

14. 2-Cyclopropylmethyl-5-(3-hydroxyphenyl)-2-azabicyclo-[3.2.1]octane, whenever obtained according to a process as claimed in claim 13 or by an obvious chemical equivalent thereof.

15. A process as claimed in claim 1 for the preparation of 5-(3-methoxyphenyl)-2-phenethyl-2-azabicyclo[3.2.1]octane in which 5-bromo-2-(2-dimethylaminoethyl)-2-(3-methoxyphenyl)-cyclopentanone hydrobromide is cyclized by treatment with a mixture of ammonia and diethyl ether, the resultant 5-(3-methoxyphenyl)-2-methyl-8-oxo-2-azabicyclo[3.2.1]octane metho-bromide is pyrolyzed in vacuo, the resultant 5-(3-methoxyphenyl)-2-methyl-8-oxo-2-azabicyclo[3.2.1]octane is reduced by heating with hydrazine, potassium hydroxide and triethylene glycol, the resultant 5-(3-methoxyphenyl)-2-methyl-2-azabicyclo[3.2.1]-octane is treated with cyanogen bromide and subsequently hydrolyzed, the resultant 5-(3-methoxyphenyl)-2-azabicyclo[3.2.1]octane is treated with triethylamine and phenylacetyl chloride in a solvent, the resultant amide is reduced with lithium aluminum hydride and the product is subsequently isolated.

16. 5-(3-Methoxyphenyl)-2-phenethyl-2-azabicyclo[3.2.1]-octane, whenever obtained according to a process as claimed in claim 15 or by an obvious chemical equivalent thereof.

17. A process as claimed in claim 1 for the preparation of 5-(3-hydroxyphenyl)-2-phenethyl-2-azabicyclo[3.2.1]octane in which 5-bromo-2-(2-dimethylaminoethyl)-2-(3-methoxyphenyl) cyclopentanone hydrobromide is cyclized by treatment with a mixture of ammonia and diethyl ether, the resultant 5-(3-methoxyphenyl)-2-methyl-8-oxo-2-azabicyclo[3.2.1]octane metho-bromide is pyrolyzed in vacuo, the resultant 5-(3-methoxyphenyl)-2-methyl-8-oxo-2-azabicyclo[3.2.1]octane is reduced by heating with hydrazine, potassium hydroxide and triethylene glycol, the resultant 5-(3-methoxyphenyl)-2-methyl-2-azabicyclo[3.2.1]-octane is treated with cyanogen bromide and subsequently hydro-lyzed, the resultant 5-(3-methoxyphenyl)-2-azabicyclo[3.2.1]
octane is treated with triethylamine and phenylacetyl chloride, the resultant amide is reduced with lithium aluminum hydride, the product is refluxed with concentrated hydrobromic acid and the product is subsequently isolated.

18. 5(3-Hydroxyphenyl)-2-phenethyl-2-azabicyclo[3.2.1]-octane, whenever obtained according to a process as claimed in claim 17 or by an obvious chemical equivalent thereof.

19. A process as claimed in claim 1 for the preparation of 5-(3-methoxyphenyl)-2-azabicyclo[3.2.1.]octane in which 5-bromo-2-(2-dimethylaminoethyl)-2-(3-methoxyphenyl)cyclopenta-none hydrobromide is cyclized by treatment with a mixture of ammonia and diethyl ether, the resultant 5-(3-methoxyphenyl)-2-methyl-8-oxo-2-azabicyclo[3.2.1]octane methobromide is pyrolyzed in vacuo, the resultant 5-(3-methoxyphenyl)-2-methyl-8-oxo-2-azabicyclo[3.2.1]octane is reduced by heating with hydrazine, potassium hydroxide and triethylene glycol, the resultant 5-(3-methoxyphenyl)-2-methyl-2-azabicyclo[3.2.1]-octane is treated with cyanogen bromide and subsequently hydro-lyzed, and the product is subsequently isolated.

20. 5-(3-Methoxyphenyl)-2-azabicyclo[3.2.1]octane, when-ever obtained according to a process as claimed in claim 19 or by an obvious chemical equivalent thereof.

21. A process as claimed in claim 1 for the preparation of 5-(3-hydroxyphenyl)-2-azabicyclo[3.2.1]octane in which 5-bromo-2-(2-dimethylaminoethyl)-2-(3-methoxyphenyl)cyclopenta-none hydrobromide is cyclized by treatment with a mixture of ammonia and diethyl ether, the resultant 5-(3-methoxyphenyl)-2-methyl-8-oxo-2-azabicyclo[3.2.1]octane methobromide is py-rolyzed in vacuo, the resultant 5-(3-methoxyphenyl)-2-methyl-8-oxo-2-azabicyclo[3.2.1]octane is reduced by heating with hy-drazine, potassium hydroxide and triethylene glycol, the re-sultant 5-(3-methoxyphenyl)-2-methyl-2-azabicyclo[3.2.1]octane is treated with cyanogen bromide and subsequently hydrolyzed, the resultant 5-(3-methoxyphenyl)-2-azabicyclo[3.2.1]octane is refluxed with concentrated hydrobromic acid and the product is subsequently isolated.

22. 5-(3-Hydroxyphenyl)-2-azabicyclo[3.2.1]octane, whenever obtained according to a process as claimed in claim 21 or by an obvious chemical equivalent thereof.

23. A process as claimed in claim 1 for the preparation of 5-(3-acetoxyphenyl)-2-methyl-2-azabicyclo[3.2.1]octane in which 5-bromo-2-(2-dimethylaminoethyl)-2-(3-methoxyphenyl)-cyclopentanone hydrobromide is cyclized by treatment with a mixture of ammonia and diethyl ether, the resultant 5-(3-methoxyphenyl)-2-methyl-8-oxo-2-azabicyclo[3.2.1]octane metho-bromide is pyrolyzed in vacuo, the resultant 5-(3-methoxyphenyl)-2-methyl-8-oxo-2-azabicyclo[3.2.1]octane is reduced by heating with hydrazine, potassium hydroxide and triethylene glycol, the resultant 5-(3-methoxyphenyl)-2-methyl-2-azabicyclo[3.2.1]-octane is reacted with acetic anhydride and the resultant pro-duct is subsequently isolated.

24. 5-(3-Acetoxyphenyl)-2-methyl-2-azabicyclo[3.2.1]-octane, whenever obtained according to a process as claimed in claim 23 or by an obvious chemical equivalent thereof.

25. A process as claimed in claim 1 for the preparation of 2-n-butyl-5-(3-hydroxyphenyl)-2-azabicyclo[3.2.1]octane in which 5-bromo-2-(2-dimethylaminoethyl)-2-(3-methoxyphenyl)-cyclopentanone hydrobromide is cyclized by treatment with a mixture of ammonia and diethyl ether, the resultant 5-(3-methoxyphenyl)-2-methyl-8-oxo-2-azabicyclo[3.2.1]octane metho-bromide is pyrolyzed in vacuo, the resultant 5-(3-methoxyphenyl)-2-methyl-8-oxo-2-azabicyclo[3.2.1]octane is reduced by heating with hydrazine, potassium hydroxide and triethylene glycol, the resultant 5-(3-methoxyphenyl)-2-methyl-2-azabicyclo[3.2.1]-octane is treated with cyanogen bromide and subsequently hydrolyzed, the resultant 5-(3-methoxypheny)-2-azabicyclo[3.2.1]-octane is treated with 1-bromobutane in a solvent in the presence of sodium bicarbonate and potassium idodide and the resultant product is re-fluxed with concentrated hydrobromic acid, and the product is subsequently isolated.

26. 2-n-Butyl-5-(3-hydroxyphenyl)-2-azabicyclo[3.2.1]-octane, whenever obtained according to a process as claimed in claim 25 or by an obvious chemical equivalent thereof.

27. A process as claimed in claim 1 for the preparation of 2-(2-furylmethyl)-5-(3-hydroxyphenyl)-2-azabicyclo[3.2.1.]-octane in which 5-bromo-2-(2-dimethylaminoethyl)-2-(3-methoxy-phenyl)cyclopentanone hydrobromide is cyclized by treatment with a mixture of ammonia and diethyl ether, the resultant 5-(3-methoxyphenyl)-2-methyl-8-oxo-2-azabicyclo[3.2.1]octane methobromide is pyrolyzed in vacuo, the resultant 5-(3-methoxy-phenyl)-2-methyl-8-oxo-2-azabicyclo[3.2.1]octane is reduced by heating with hydrazine, potassium hydroxide and triethylene glycol, the resultant 5-(3-methoxyphenyl)-2-methyl-2-azabicyclo-[3.2.1]octane is treated with cyanogen bromide and subsequently hydrolyzed, the resultant 5-(3-methoxyphenyl)-2-azabicyclo[3.2.1]-octane is refluxed with concentrated hydrobromic acid, the product is reacted with triethylamine and 2-furoylchloride in a solvent, the resultant amide is reduced with lithium aluminum hydride and the product is isolated.

28. 2-(2-Furylmethyl)-5-(3-hydroxyphenyl)-2-azabicyclo-[3.2.1]octane, whenever obtained according to a process as claimed in claim 27 or by an obvious chemical equivalent there-of.

29. A process as claimed in claim 1 for the preparation of 5-(3-hydroxyphenyl)-2-[(2-thienyl)ethyl]-2-azabicyclo[3.2.1]-octane in which 5-bromo-2-(2-dimethylaminoethyl)-2-(3-methoxy-phenyl)cyclopentanone hydrobromide is cyclized by treatment with a mixture of ammonia and diethyl ether, the resultant 5-(3-methoxyphenyl)-2-methyl-8-oxo-2-azabicyclo[3.2.1]octane methobromide is pyrolyzed in vacuo, the resultant 5-(3-methoxy-phenyl)-2-methyl-8-oxo-2-azabicyclo[3.2.1]octane is reduce by heating with hydrazine, potassium hydroxide and triethylene glycol, the resultant 5-(3-methoxyphenyl)-2-methyl-2-azabicyclo-[3.2.1]octane is treated with cyanogen bromide and subsequently hydrolyzed, the resultant 5-(3-methoxyphenyl)-2-azabicyclo[3.2.1]-octane is treated with triethylamine and 2-thienylacetyl chlor-ide, the resultant amide is reduced with lithium aluminum hy-dride and the product is refluxed with concentrated hydrobromic acid, and the resultant product is subsequently isolated.

30. 5-(3-Hydroxyphenyl)-2-[(2-thienyl)ethyl]-2-azabi-cyclo[3.2.1]octane, whenever obtained according to a process as claimed in claim 29 or by an obvious chemical equivalent thereof.

31. A process as claimed in claim 1 for the preparation of 2-ethyl-5-(3-hydroxyphenyl)-2-azabicyclo[3.2.1]octane in which 5-bromo-2-(2-dimethylaminoethyl)-2-(3-metnoxyphenyl)-cyclopentanone hydrobromide is cyclized by treatment with a mixture of ammonia and diethyl ether, the resultant 5-(3-methoxy-phenyl)-2-methyl-8-oxo-2-azabicyclo[3.2.1]octane methobromide is pyrolyzed in vacuo, the resultant 5-(3-methoxyphenyl)-2-methyl-8-oxo-2-azabicyclo[3.2.1]octane is reduced by heating with hydrazine, potassium hydroxide and triethylene glycol, the resultant 5-(3-methoxyphenyl)-2-methyl-2-azabicyclo[3.2.1]-octane is treated with cyanogen bromide and subsequently hy-drolyzed, the resultant 5-(3-methoxyphenyl)-2-azabicyclo[3.2.1]-octane is treated with iodoethane in a solvent in the presence of sodium bicarbonate and the resultant product is refluxed with concentrated hydrobromic acid, and the product is subsequently isolated.

32. 2-Ethyl-5-(3-hydroxyphenyl)-2-azabicyclo[3.2.1]octane, whenever obtained according to a process as claimed in claim 31 or by an obvious chemical equivalent thereof.

33. A process as claimed in claim 1 for the preparation of 2-[3-(4-fluorobenzoyl)propyl]-5-(3-methoxyphenyl)-2-azabi-cyclo[3.2.1]octane in which 5-bromo-2-(2-dimethylaminoethyl)-2-(3-methoxyphenyl)cyclopentanone hydrobromide is cyclized by treatment with a mixture of ammonia and diethyl ether, the resultant 5-(3-methoxyphenyl)-2-methyl-8-oxo-2-azabicyclo[3.2.1]-octane methobromide is pyrolyzed in vacuo, the resultant 5-(3-methoxyphenyl)-2-methyl-8-oxo-2-azabicyclo[3.2.1]octane is reduced by heating with hydrazine, potassium hydroxide and triethylene glycol, the resultant 5-(3-methoxyphenyl)-2-methyl-2-azabicyclo[3.2.1]octane is treated with cyanogen bromide and subsequently hydrolyzed, the resultant 5-(3-methoxyphenyl)-2-azabicyclo[3.2.1]octane is treated with a mixture of ?-chloro-4-fluorobutyrophenone ethylene glycol ketal, sodium bicarbon-ate and potassium iodide, the product is hydrolyzed with an ethanolic solution of hydrogen chloride, and the resultant product is subseqently isolated.

34. 2-[3-(4-Fluorobenzoyl)propyl]-5-(3-methoxyphenyl)-2-azabicyclo[3.2.1]octane, whenever obtained according to a process as claimed in claim 33 or by an obvious chemical equi-valent thereof.

35. A process as claimed in claim 1 for the preparation of 2-[3-(4-fluorobenzoyl)propyl]-5-(3-hydroxyphenyl)-2-azabi-cyclo[3.2.1]octane in which 5-bromo-2-(2-dimethylaminoethyl)-2-(3-methoxyphenyl)cyclopentanone hydrobromide is cyclized by treatment with a mixture of ammonia and diethyl ether, the resultant 5-(3-methoxyphenyl)-2-methyl-8-oxo-2-azabicyclo[3.2.1]-octane methobromide is pyrolyzed in vacuo, the resultant 5-(3-methoxyphenyl)-2-methyl-8-oxo-2-azabicyclo[3.2.1]octane is reduced by heating with hydrazine, potassium hydroxide and tri-ethylene glycol, the resultant 5-(3-methoxyphenyl)-2-methyl-2-azabicyclo[3.2.1]octane is treated with cyanogen bromide and subsequently hydrolyzed, the resultant 5-(3-methoxyphenyl)-2-azabicyclo[3.2.1]octane is treated with a mixture of ? -chloro-4-fluorobutyrophenone ethylene glycol ketal, sodium bicarbon-ate and potassium iodide, the product is hydrolyzed with an ethanolic solution of hydrogen chloride, the resultant product is refluxed with concentrated hydrobromic acid and the product is subsequently isolated.

36. 2-[3-(4-Fluorobenzoyl)propyl]-5-(3-hydroxyphenyl)-2-azabicyclo[3.2.1]octane, whenever obtained according to a process as claimed in claim 35 or by an obvious chemical equi-valent thereof.

37. A process as claimed in claim 1 for the preparation of 5-(4-hydroxyphenyl)-2-methyl-2-azabicyclo[3.2.1]octane in which 5-bromo-2-(2-dimethylaminoethyl)-2-(4-methoxyphenyl)cyclo-pentanone hydrobromide is cyclized by treatment with a mixture of ammonia and diethyl ether, the resultant 5-(4-methoxyphenyl)-2-methyl-8-oxo-2-azabicyclo[3.2.1]octane methobromide is py-rolyzed in vacuo, the resultant 5-(4-methoxyphenyl)-2-methyl-8-oxo-2-azabicyclo[3.2.1]octane is reduced by heating with hydrazine, potassium hydroxide and triethylene glycol, the resultant 5-(4-methoxyphenyl)-2-methyl-2-azabicyclo[3.2.1]-octane is refluxed with concentrated hydrobromic acid and the product is isolated.

38. 5-(4-Hydroxyphenyl)-2-methyl-2-azabicyclo[3.2.1]-octane, whenever obtained according to a process as claimed in claim 37 or by an obvious chemical equivalent thereof.

39. A process as claimed in claim 1 for the preparation of 2-(4-chlorophenethyl)-5-(3-hydroxyphenyl)-2-azabicyclo[3.2.1]-octane in which 5-bromo-2-(2-dimethylaminoethyl)-2-(3-methoxy-phenyl)cyclopentanone hydrobromide is cyclized by treatment with a mixture of ammonia and diethyl ether, the resultant 5-(3-methoxyphenyl)-2-methyl-8-oxo-2-azabicyclo[3.2.1]octane metho-bromide is pyrolyzed in vacuo, the resultant 5-(3-methoxyphenyl)-2-methyl-8-oxo-2-azabicyclo[3.2.1]octane is reduced by heating with hydrazine, potassium hydroxide and triethylene glycol, the resultant 5-(3-methoxyphenyl)-2-methyl-2-azabicyclo[3.2.1]-octane is treated with cyanogen bromide and subsequently hydro-lyzed, the resultant 5-(3-methoxyphenyl)-2-azabicyclo[3.2.1]-octane is treated with triethylamine and 4-chlorophenyl-acetyl chloride, the resultant amide is reduced with lithium aluminum hydride, the product is refluxed with concentrated hydrobromic acid and the product is subsequently isolated.

40. 2-(4-Chlorophenethyl)-5-(3-hydroxyphenyl)-2-azabi-cyclo[3.2.1]octane, whenever obtained according to a process as claimed in claim 39 or by an obvious chemical equivalent thereof.

41. A process as claimed in claim 1 for the preparation of 2-(3,4-dichlorophenethyl)-5-(3-hydroxyphenyl)-2-azabicyclo-[3.2.1]octane in which 5-bromo-2 (2-dimethylaminoethyl)-2-(3-methoxyphenyl)cyclopentanone hydrobromide is cyclized by treatment with a mixture of ammonia and diethyl ether, the resultant 5-(3-methoxyphenyl)-2-methyl-8-oxo-2-azabicyclo[3.2.1]-octane methobromide is pyrolyzed in vacuo, the resultant 5-(2-methoxyphenyl)-2-methyl-8-oxo-2-azabicyclo[3.2.1]octane is reduced by heating with hydrazine, potassium hydroxide and triethylene glycol, the resultant 5-(3-methoxyphenyl)-2-methyl-2-azabicyclo[3.2.1]octane is treated with cyanogen bromide and subsequently hydrolyzed, the resultant 5-(3-methoxyphenyl)-2-azabicyclo[3.2.1]octane is treated with triethylamine and 3,4-dichlorophenylacetyl chloride, the resultant amide is reduced with lithium aluminum hydride, the product is refluxed with concentrated hydrobromic acid and the product is subsequently isolated.

42. 2-(3,4-Dichlorophenethyl)-5-(3-hydroxyphenyl)-2-azabicyclo[3.2.1]octane, whenever obtained according to a pro-cess as claimed in claim 41 or by an obvious chemical equiva-lent thereof.

43. A process as claimed in claim 1 for the preparation of 2(3-chlorophenethyl)-5-(3-hydroxyphenyl)-2-azabicyclo[3.2.1]-octane in which 5-bromo-2-(2-dimethylaminoethyl)-2-(3-methoxy-phenyl)cyclopentanone hydrobromide is cyclized by treatment with a mixture of ammonia and diethyl ether, the resultant 5-(3-methoxyphenyl)-2-methyl-8-oxo-2-azabicyclo[3.2.1]octane metho-bromide is pyrolyzed in vacuo, the resultant 5-(3-methoxy-phenyl)-2-methyl-8-oxo-2-azabicyclo[3.2.1]octane is reduced by heating with hydrazine, potassium hydroxide and triethyl-ene glycol,the resultant 5-(3-methoxyphenyl)-2-methyl-2-azabi-cyclo[3.2.1]octane is treated with cyanogen bromide and subse-quently hydrolyzed, the resultant 5-(3-methoxyphenyl)-2-aza-bicyclo[3.2.1]octane is treated with triethylamine and 3-chloro-phenylacetyl chloride, the resultant amide is reduced with lithium aluminum hydride, the product is refluxed with concen-trated hydrobromic acid and the product is subsequently iso-lated.

44. 2-(3-Chlorophenethyl)-5-(3-hydroxyphenyl)-2-azabicyclo-[3.2.1]octane, whenever obtained according to a process as claimed in claim 43 or by an obvious chemical equivalent thereof.

45. A process as claimed in claim 1 for the preparation of 2-[2-(2-furyl)ethyl]-5-(3-hydroxyphenyl)-2-azabicyclo[3.2.1]-octane in which 5-bromo-2-(2-dimethylaminoethyl)-2-(3-methoxy-phenyl)cyclopentanone hydrobromide is cyclized by treatment with ammonia and diethyl ether, the resultant 5-(3-methoxyphenyl)-2-methyl-8-oxo-2-azabicyclo[3.2.1]octane methobromide is pyro-lyzed in vacuo, the resultant 5-(3-methoxyphenyl)-2-methyl-8-oxo-2-azabicyclo[3.2.1]octane is reduced by heating with hydra-zine, potassium hydroxide and triethylene glycol, the resultant 5-(3-methoxyphenyl)-2-methyl-2-azabicyclo[3.2.1]octane is treat-ed with cyanogen bromide and subsequently hydrolyzed, the re-sultant 5-(3-methoxyphenyl)-2-azabicyclo[3.2.1]octane is re-fluxed with concentrated hydrobromic acid, and the product is reacted with triethylamine and 2-furylacetyl chloride in a sol-vent, the resultant amide is reduced with lithium aluminum hy-dride and the product is subsequently isolated.

46. 2-[2-(2-Furyl)ethyl]-5-(3-hydroxyphenyl)-2-azabicyclo-[3.2.1]octane, whenever obtained according to a process as claimed in claim 45 or by an obvious chemical equivalent thereof.