| Identification | Back Directory | [Name]
DICYCLOMINE HYDROCHLORIDE | [CAS]
67-92-5 | [Synonyms]
atumin
dyspas
Bentyl)
oxityl-p
mamiesan
merbentyl
bentomine
Magesan P
procyclomin
di-syntramine
sancarbossilico
DICYCLOMINE HCL
DicycloMine Hydr
bentylhydrochloride
diocylhydrochloride
kolantylhydrochloride
DicyclomineHcl(Atumin
bentylolhydrochloride
LABOTEST-BB LT00771946
DICYCLOMINE HYDROCHLORIDE
dicycloverinhydrochloride
DICYCLOMINEHYDROCHLORIDE,USP
Dicyclomine Hydrochloride (125 mg)
diethylaminocarbethoxybicyclohexylhydrochloride
2-(diethylamino)ethyl(bicyclohexyl)-1-carboxylatehydrochloride
bis(cyclohexyl)carboxylicaciddiethylaminoethylesterhydrochloride
beta-diethylaminoethyl-1-cyclohexylhexahydrobenzoatehydrochloride
beta-diethylaminoethyl1-cyclohexylcyclohexanecarboxylatehydrochloride
[BICYCLOHEXYL]-1-CARBOXYLIC ACID DIETHYLAMINOETHYL ESTER HYDROCHLORIDE
(bicyclohexyl)-1-carboxylicacid,2-(diethylamino)ethylester,hydrochloride
cloridratodell’esterebeta-dietilaminoetilicodell’acidocicloesil-1-cicloe
[2-[[[1,1'-bicyclohexyl]-1-ylcarbonyl]oxy]ethyl]diethylammonium chloride
(1,1’-bicyclohexyl)-1-carboxylicacid,2-(diethylamino)ethylester,hydrochlo
2-(Diethylamino)ethyl 1-cyclohexylcyclohexane-1-carboxylate hydrochloride
[1,1’-bicyclohexyl]-1-carboxylicacid,2-(diethylamino)ethylester,hydrochlori
1-cyclohexyl-cyclohexan-1-carbonsaeure-2-diaethylaminoaethylesterhydrochlori
[1,1'-BICYCLOHEXYL]-1-CARBOXYLIC ACID 2-(DIETHYLAMINO) ETHYL ESTER, HYDROCHLORIDE
2-(Diethylamino)ethyl 1-cyclohexylcyclohexane-1-carboxylate hydrochloride, [1,1-Bicyclohexyl]-1-carboxylic acid 2-(diethylamino)ethyl ester hydrochloride | [EINECS(EC#)]
200-671-1 | [Molecular Formula]
C19H36ClNO2 | [MDL Number]
MFCD00079158 | [MOL File]
67-92-5.mol | [Molecular Weight]
345.95 |
| Hazard Information | Back Directory | [Chemical Properties]
White Crystalline Powder | [Uses]
anticholinergic | [Uses]
Used as a gastrointestinal antispasmodic antacid | [Definition]
ChEBI: The hydrochloride salt of dicyclomine. An anticholinergic, it is used to treat or prevent spasm in the muscles of the gastrointestinal tract, particularly that associated with irritable bowel syndrome. | [Description]
Dicyclomine is an M1 and M2 muscarinic acetylcholine receptor antagonist (Kis = 3.16 and 44.7 nM, respectively). It inhibits inositol phosphate accumulation induced by the non-selective acetylcholine agonist carbamoylcholine (carbachol; ) in guinea pig cortex (Ki = 12 nM; pA2 = 7.88). Dicyclomine (10 mg/kg, i.v.) inhibits potassium-induced contraction of ileum, colon, and duodenum in anesthetized rats by 21.85, 30.81, and 37.86%, respectively. Formulations containing dicyclomine have been used to treat functional and irritable bowel syndrome and to relieve muscle spasms in the gastrointestinal tract. | [Originator]
Bentyl ,Merrell National ,US,1950 | [Manufacturing Process]
155 grams of 1-phenylcyclohexanecyanide, 350 cc of concentrated sulfuric
acid and 1,130 cc of ethyl alcohol are refluxed vigorously for 48 hours. The
remaining alcohol is then removed by vacuum distillation and the residue is
poured into 1 liter of ice water. An oil separates which is extracted 3 times
with 200 cc portions of petroleum ether, the extracts are combined and heated on a steam bath to remove the ether. The resulting crude ester may
be used directly for the reesterification operation or it may be distilled to
purify it first. A mixture of the ester so obtained, 155 grams of βdiethylaminoethanol and 800 cc of dry xylene are placed in a reaction vessel
with about 2 grams of sodium. The vessel is heated in an oil bath at 150°-
160°C. A xylene-ethanol azeotrope distills over at about 78°-82°C over a
period of 2 to 3 hours. The distillate is cooled and shaken with about 3 times
its volume of water, the decrease in volume of the distillate being considered a
measure of the amount of alcohol formed. When 80-90% of the theoretical
amount of alcohol is obtained in the distillate the reaction mixture is subjected
to vacuum distillation to remove most of the xylene and unreacted
diethylaminoethanol. The residue is poured into 500 cc of benzene which is
then extracted 3 times with 500 cc portions of water.
The washed benzene layer is diluted with an equal volume of ether and
alcoholic hydrochloric acid is added until the mixture is acid to Congo red. A
white crystalline solid forms which is dissolved in 300-400 cc of alcohol and
diluted with ether to the point where precipitation starts. A few drops of
butanone are added, the solution is cooled to -10°C, and filtered to recover
the crystals which separate. The product is obtained in the form of white
needles melting at 159°-160°C, in good yield.
13 parts of β-diethylaminoethyl 1-phenylcyclohexanecarboxylate
hydrochloride, 125 parts of glacial acetic acid and 0.3 part of Adams' catalyst
are heated to 70°C and shaken with hydrogen at 50 lb pressure until 90-
100% of the theoretical hydrogen is absorbed. The acetic acid is then
removed by distillation and the residue recrystallized from butanone, giving
the above product as a crystalline hydrochloride melting at 165°-166°C, in
good yields. This product may also be prepared by reacting cyclohexyl
bromide with cyclohexyl cyanide with the use of sodium amide followed by
alcoholysis and reesterification.
| [Brand name]
Bentyl (Axcan Scandipharm). | [Therapeutic Function]
Spasmolytic | [General Description]
Dicyclomine hydrochloride,2-(diethylamino)ethyl bicyclohexyl-1-carboxylatehydrochloride (Bentyl), has some muscarinic receptorsubtype selectivity. It binds more firmly to M1 and M3 thanto M2 and M4 receptors.76Dicyclomine hydrochloride has one eighth of the neurotropicactivity of atropine and approximately twice themusculotropic activity of papaverine. This preparation, firstintroduced in 1950, has minimized the adverse effects associatedwith the atropine-type compounds. | [Clinical Use]
Dicyclomine Hydrochloride is used for itsspasmolytic effect on various smooth muscle spasms, particularlythose associated with the GI tract. It is also usefulin dysmenorrhea, pylorospasm, and biliary dysfunction. | [Safety Profile]
Poison by intravenous route.Moderately toxic by ingestion. Human systemic effects byingestion: rigidity, dyspnea, cyanosis. When heated todecomposition it emits very toxic fumes of HCl and NOx. | [storage]
Store at -20°C |
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