Product Name

  • Name

    Glycopyrrolate

  • EINECS 209-887-0
  • CAS No. 596-51-0
  • Article Data7
  • CAS DataBase
  • Density 1.3222 (rough estimate)
  • Solubility
  • Melting Point 193 - 194.5oC
  • Formula C19H28BrNO3
  • Boiling Point
  • Molecular Weight 398.34
  • Flash Point
  • Transport Information
  • Appearance White crystalline powder
  • Safety 26
  • Risk Codes 36/37/38
  • Molecular Structure Molecular Structure of 596-51-0 (Glycopyrrolate)
  • Hazard Symbols Xi
  • Synonyms 3-Hydroxy-1,1-dimethylpyrrolidiniumbromide a-cyclopentylmandelate (6CI,7CI);Pyrrolidinium, 3-[(cyclopentylhydroxyphenylacetyl)oxy]-1,1-dimethyl-, bromide(9CI);Pyrrolidinium, 3-hydroxy-1,1-dimethyl-, bromide, a-cyclopentylmandelate (8CI);1,1-Dimethyl-3-hydroxypyrrolidinium bromide a-cyclopentylmandelate;AHR-504;Asecryl;Copyrrolate;Gastrodyn;Glycopyrrolate bromide;Glycopyrronium bromide;Nodapton;Robanul;Robinul;Tarodyl;Tarodyn;b-1-Methyl-3-pyrrolidyl-a-cyclopentylmandelatemethobromide;
  • PSA 46.53000
  • LogP -0.58090

Synthetic route

methyl bromide
74-83-9

methyl bromide

3-(2-cyclopentyl-2-hydroxy-2-phenylacetyloxy)-1-methylpyrrolidine
13118-11-1

3-(2-cyclopentyl-2-hydroxy-2-phenylacetyloxy)-1-methylpyrrolidine

glycopyrronium bromide
596-51-0

glycopyrronium bromide

Conditions
ConditionsYield
In butanone at 20℃; Cooling with ice;22%
In acetonitrile at -10 - 20℃; for 12h;144 g
In chloroform; acetonitrile at 20℃; for 72h;
1-methyl-3-pyrrolidinol
13220-33-2

1-methyl-3-pyrrolidinol

2-cyclopentyl-2-hydroxy-2-phenylacetic acid
427-49-6

2-cyclopentyl-2-hydroxy-2-phenylacetic acid

glycopyrronium bromide
596-51-0

glycopyrronium bromide

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1.1: 1,1'-carbonyldiimidazole / toluene / 0.5 h / 20 °C
1.2: 20 °C
2.1: butanone / 20 °C / Cooling with ice
View Scheme
2-cyclopentyl-2-hydroxy-2-phenylacetic acid
427-49-6

2-cyclopentyl-2-hydroxy-2-phenylacetic acid

glycopyrronium bromide
596-51-0

glycopyrronium bromide

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1.1: sodium hydroxide / N,N-dimethyl-formamide / 1 h / 60 °C
1.2: 3 h / 110 °C
2.1: sulfuric acid / tetrahydrofuran / 70 °C
3.1: palladium on activated charcoal; hydrogen / methanol / 3 h / 25 °C
4.1: acetonitrile / 12 h / -10 - 20 °C
View Scheme
C20H22O3

C20H22O3

glycopyrronium bromide
596-51-0

glycopyrronium bromide

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: sulfuric acid / tetrahydrofuran / 70 °C
2: palladium on activated charcoal; hydrogen / methanol / 3 h / 25 °C
3: acetonitrile / 12 h / -10 - 20 °C
View Scheme
phenylglyoxylyl chloride
25726-04-9

phenylglyoxylyl chloride

glycopyrronium bromide
596-51-0

glycopyrronium bromide

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1.1: triethylamine / dichloromethane / 12.25 h / 0 - 25 °C / Inert atmosphere
2.1: magnesium / tetrahydrofuran / 0.5 h / 0 °C
2.2: 0.5 h / 0 °C
3.1: acetonitrile; chloroform / 72 h / 20 °C
View Scheme
Benzoylformic acid
611-73-4

Benzoylformic acid

glycopyrronium bromide
596-51-0

glycopyrronium bromide

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1.1: dicyclohexyl-carbodiimide; dmap / dichloromethane / 25 °C / Inert atmosphere
2.1: magnesium / tetrahydrofuran / 0.5 h / 0 °C
2.2: 0.5 h / 0 °C
3.1: acetonitrile; chloroform / 72 h / 20 °C
View Scheme
1-methyl-3-pyrrolidinol
13220-33-2

1-methyl-3-pyrrolidinol

glycopyrronium bromide
596-51-0

glycopyrronium bromide

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1.1: dicyclohexyl-carbodiimide; dmap / dichloromethane / 25 °C / Inert atmosphere
2.1: magnesium / tetrahydrofuran / 0.5 h / 0 °C
2.2: 0.5 h / 0 °C
3.1: acetonitrile; chloroform / 72 h / 20 °C
View Scheme
Multi-step reaction with 3 steps
1.1: dicyclohexyl-carbodiimide; dmap / dichloromethane / 25 °C / Inert atmosphere
2.1: magnesium / tetrahydrofuran / 0.5 h / 0 °C
2.2: 0.5 h / 0 °C
3.1: acetonitrile; chloroform / 72 h / 20 °C
View Scheme
Multi-step reaction with 3 steps
1.1: triethylamine / dichloromethane / 10.33 h / 0 - 20 °C / Inert atmosphere
2.1: magnesium / tetrahydrofuran / 0.5 h / 0 °C
2.2: 0.5 h / 0 °C
3.1: acetonitrile; chloroform / 72 h / 20 °C
View Scheme
Multi-step reaction with 3 steps
1.1: triethylamine / dichloromethane / 12.25 h / 0 - 25 °C / Inert atmosphere
2.1: magnesium / tetrahydrofuran / 0.5 h / 0 °C
2.2: 0.5 h / 0 °C
3.1: acetonitrile; chloroform / 72 h / 20 °C
View Scheme
2-cyclopentyl-2-oxoacetyl chloride

2-cyclopentyl-2-oxoacetyl chloride

glycopyrronium bromide
596-51-0

glycopyrronium bromide

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1.1: triethylamine / dichloromethane / 10.33 h / 0 - 20 °C / Inert atmosphere
2.1: magnesium / tetrahydrofuran / 0.5 h / 0 °C
2.2: 0.5 h / 0 °C
3.1: acetonitrile; chloroform / 72 h / 20 °C
View Scheme
1-methylpyrrolidin-3-yl 2-cyclopentyl-2-oxoacetate

1-methylpyrrolidin-3-yl 2-cyclopentyl-2-oxoacetate

glycopyrronium bromide
596-51-0

glycopyrronium bromide

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1.1: magnesium / tetrahydrofuran / 0.5 h / 0 °C
1.2: 0.5 h / 0 °C
2.1: acetonitrile; chloroform / 72 h / 20 °C
View Scheme
2-Cyclopentyl-2-oxoacetic acid
5763-56-4

2-Cyclopentyl-2-oxoacetic acid

glycopyrronium bromide
596-51-0

glycopyrronium bromide

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1.1: dicyclohexyl-carbodiimide; dmap / dichloromethane / 25 °C / Inert atmosphere
2.1: magnesium / tetrahydrofuran / 0.5 h / 0 °C
2.2: 0.5 h / 0 °C
3.1: acetonitrile; chloroform / 72 h / 20 °C
View Scheme
glycopyrronium bromide
596-51-0

glycopyrronium bromide

[(cyclopentyl-hydroxyphenylacetyl)oxy]-1,1-dimethylpyrrolidinium chloride
873295-31-9

[(cyclopentyl-hydroxyphenylacetyl)oxy]-1,1-dimethylpyrrolidinium chloride

Conditions
ConditionsYield
With Amberlite IRA900 Cl In ethanol; water Product distribution / selectivity;94%
Stage #1: glycopyrronium bromide With silver(I) acetate In methanol at 15 - 25℃; for 2h;
Stage #2: With hydrogenchloride In ethyl acetate at 5 - 10℃; for 1h;
72%
glycopyrronium bromide
596-51-0

glycopyrronium bromide

[(cyclopentyl-hydroxyphenylacetyl)oxy]-1,1-dimethylpyrrolidinium chloride
873295-31-9

[(cyclopentyl-hydroxyphenylacetyl)oxy]-1,1-dimethylpyrrolidinium chloride

Conditions
ConditionsYield
With resin Amberlite IRA900 CI In ethanol; water94%
glycopyrronium bromide
596-51-0

glycopyrronium bromide

A

3-hydroxy-1,1-dimethyl pyrrolidinium bromide

3-hydroxy-1,1-dimethyl pyrrolidinium bromide

B

2-cyclopentyl-2-hydroxy-2-phenylacetic acid
427-49-6

2-cyclopentyl-2-hydroxy-2-phenylacetic acid

Conditions
ConditionsYield
With sodium hydroxide In water at 20℃;A 3.87 g
B 92%
glycopyrronium bromide
596-51-0

glycopyrronium bromide

(1,1-dimethylpyrrolidin-1-ium-3-yl) 2-cyclopentyl-2-hydroxy-2-phenylacetate mono(4-methylbenzenesulfonate)
873295-46-6

(1,1-dimethylpyrrolidin-1-ium-3-yl) 2-cyclopentyl-2-hydroxy-2-phenylacetate mono(4-methylbenzenesulfonate)

Conditions
ConditionsYield
With dihydrogen peroxide; toluene-4-sulfonic acid In cyclohexane; cyclohexene at 25 - 30℃; for 12h; Reagent/catalyst;69.2%
glycopyrronium bromide
596-51-0

glycopyrronium bromide

3-[(cyclopentylhydroxyphenylacetyl)oxy]-1,1-dimethylpyrrolidinium iodide

3-[(cyclopentylhydroxyphenylacetyl)oxy]-1,1-dimethylpyrrolidinium iodide

Conditions
ConditionsYield
With sodium iodide In dichloromethane; water for 16h;
silver benzoate
532-31-0

silver benzoate

glycopyrronium bromide
596-51-0

glycopyrronium bromide

3-[(cyclopentylhydroxyphenylacetyl)oxy]-1,1-dimethyl-pyrrolidinium benzoate
873295-45-5

3-[(cyclopentylhydroxyphenylacetyl)oxy]-1,1-dimethyl-pyrrolidinium benzoate

Conditions
ConditionsYield
In water at 92℃;
silver(I) 4-methylbenzenesulfonate
16836-95-6

silver(I) 4-methylbenzenesulfonate

glycopyrronium bromide
596-51-0

glycopyrronium bromide

(1,1-dimethylpyrrolidin-1-ium-3-yl) 2-cyclopentyl-2-hydroxy-2-phenylacetate mono(4-methylbenzenesulfonate)
873295-46-6

(1,1-dimethylpyrrolidin-1-ium-3-yl) 2-cyclopentyl-2-hydroxy-2-phenylacetate mono(4-methylbenzenesulfonate)

Conditions
ConditionsYield
In water at 40℃; Darkness;
In isopropyl alcohol at 20℃; Darkness;
Reaxys ID: 30758740

Reaxys ID: 30758740

glycopyrronium bromide
596-51-0

glycopyrronium bromide

Reaxys ID: 30758741

Reaxys ID: 30758741

Conditions
ConditionsYield
In 2-methyltetrahydrofuran
Sodium laurate
629-25-4

Sodium laurate

glycopyrronium bromide
596-51-0

glycopyrronium bromide

glycopyrronium laurate

glycopyrronium laurate

Conditions
ConditionsYield
In water at 20℃; for 96h; Solvent;
glycopyrronium bromide
596-51-0

glycopyrronium bromide

stearic acid
57-11-4

stearic acid

glycopyrronium stearate

glycopyrronium stearate

Conditions
ConditionsYield
With potassium hydroxide In 2-methyltetrahydrofuran; water for 0.5h;
glycopyrronium bromide
596-51-0

glycopyrronium bromide

toluene-4-sulfonic acid
104-15-4

toluene-4-sulfonic acid

(1,1-dimethylpyrrolidin-1-ium-3-yl) 2-cyclopentyl-2-hydroxy-2-phenylacetate mono(4-methylbenzenesulfonate)
873295-46-6

(1,1-dimethylpyrrolidin-1-ium-3-yl) 2-cyclopentyl-2-hydroxy-2-phenylacetate mono(4-methylbenzenesulfonate)

Conditions
ConditionsYield
With Aliquat 336; sodium hydroxide In dichloromethane; cyclohexane; water at 25 - 30℃; for 24h; Reagent/catalyst; Solvent; Concentration;
sodium tosylate
657-84-1

sodium tosylate

glycopyrronium bromide
596-51-0

glycopyrronium bromide

(1,1-dimethylpyrrolidin-1-ium-3-yl) 2-cyclopentyl-2-hydroxy-2-phenylacetate mono(4-methylbenzenesulfonate)
873295-46-6

(1,1-dimethylpyrrolidin-1-ium-3-yl) 2-cyclopentyl-2-hydroxy-2-phenylacetate mono(4-methylbenzenesulfonate)

Conditions
ConditionsYield
In water at 40 - 45℃; Green chemistry; Industrial scale;390 g

Glycopyrrolate Chemical Properties

Molecular Structure of Glycopyrrolate (CAS NO.596-51-0):

IUPAC Name: (1,1-dimethylpyrrolidin-1-ium-3-yl) 2-cyclopentyl-2-hydroxy-2-phenylacetate bromide
Molecular Formula: C19H28BrNO3
Molecular Weight: 398.334520 g/mol
ACD/LogP: 0.38
of Rule of 5 Violations: 0
ACD/LogD (pH 5.5): 0.38
ACD/LogD (pH 7.4): 0.38
ACD/BCF (pH 5.5): 1.15
ACD/BCF (pH 7.4): 1.15
ACD/KOC (pH 5.5): 38.39
ACD/KOC (pH 7.4): 38.39
H bond acceptors: 4
H bond donors: 1
Freely Rotating Bonds: 6
Polar Surface Area: 35.53Å2
EINECS: 209-887-0
Classification Code: Adjuvants, anesthesia; Anticholinergic; Central Nervous System Agents; Cholinergic Agents; Cholinergic Antagonists; Drug / Therapeutic Agent; Muscarinic antagonists; Neurotransmitter Agents; Reproductive Effect
InChI
InChI=1/C19H28NO3.BrH/c1-20(2)13-12-17(14-20)23-18(21)19(22,16-10-6-7-11-16)15-8-4-3-5-9-15;/h3-5,8-9,16-17,22H,6-7,10-14H2,1-2H3;1H/q+1;/p-1
Smiles
C1([C@@](c2ccccc2)(C(O[C@@H]2C[N+](C)(C)CC2)=O)O)CCCC1.[BrH-]

Glycopyrrolate Toxicity Data With Reference

1.    

ipr-rat LD50:196 mg/kg

    TXAPA9    Toxicology and Applied Pharmacology. 17 (1970),361.
2.    

scu-rat LD50:833 mg/kg

    NIIRDN    “Drugs in Japan. Ethical Drugs, 6th Edition 1982” Edited by Japan Pharmaceutical Information Center. 6 (1982),349.
3.    

orl-mus LD50:570 mg/kg

    JMPCAS    Journal of Medicinal and Pharmaceutical Chemistry. 2 (1960),523.
4.    

ipr-mus LD50:90 mg/kg

    JMPCAS    Journal of Medicinal and Pharmaceutical Chemistry. 2 (1960),523.
5.    

scu-mus LD50:122 mg/kg

    YKYUA6    Yakkyoku. Pharmacy. 26 (1975),741.
6.    

ivn-mus LD50:15 mg/kg

    29ZVAB    Handbook of Analytical Toxicology ,Sunshine, I., ed.,Cleveland, OH.: Chemical Rubber Co.,1969,55.
7.    

orl-rbt LD50:2360 mg/kg

    OYYAA2    Oyo Yakuri. Pharmacometrics. 7 (1973),627.
8.    

ivn-rbt LD50:29,100 µg/kg

    OYYAA2    Oyo Yakuri. Pharmacometrics. 7 (1973),627.

Glycopyrrolate Safety Profile

Poison by intravenous and intraperitoneal routes. Moderately toxic by ingestion and subcutaneous routes. Experimental reproductive effects. When heated to decomposition it emits very toxic fumes of NOx and Br. See also BROMIDES.

Glycopyrrolate Specification

  Glycopyrrolate , with CAS number of 596-51-0, can be called 1,1-dimethyl-3-hydroxypyrrolidiniumbromidealpha-cyclopentylmandelate ; 1-methyl-3-pyrrolidylalpha-phenylcyclopentaneglycolatemethobromide ; ahr504;asecryl;gastrodyn ; glycopyrrolatebromide ; nodapton ; pyrrolidinium,1,1-dimethyl-3-hydroxy-, bromide, alpha-cyclopentylmandelate . Glycopyrrolate (CAS NO.596-51-0) has some side effects as a medicine such as fever, heat stroke in hot environments, dry mouth, difficulty urinating, headaches, diarrhea and constipation. Glycopyrrolate (CAS NO.596-51-0) is a medicine used for treating stomach ulcers, asthma, COPD and hyperhidrosis. It is also used to reduce excessive saliva. In anesthesia, glycopyrrolate injection can be used as a preoperative medication to reduce salivary, tracheobronchial, and pharyngeal secretions, as well as decreasing the acidity of gastric secretion. It is also used to prevent neostigmine's muscarinic effects in combination with neostigmine.

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