Metoclopramid

Bezeichnung:Metoclopramid

CAS-Nr364-62-5

Englisch Name:4-Amino-5-chloro-N-(2-(diethylamino)ethyl)-2-methoxybenzamide

CBNumberCB4506227

SummenformelC14H22ClN3O2

Molgewicht299.8

MOL-Datei364-62-5.mol

Synonyma

Metoclopramid

Metoclopramid physikalisch-chemischer Eigenschaften

Schmelzpunkt	146-148°C
Siedepunkt	418.7±45.0 °C(Predicted)
Dichte	1.2432 (rough estimate)
Brechungsindex	1.5200 (estimate)
storage temp.	2-8°C
Löslichkeit	Practically insoluble in water, sparingly soluble or slightly soluble in ethanol (96 per cent), slightly soluble in methylene chloride
pka	pKa 0.42± 0.03;9.71± 0.02(H2O)(Approximate)
Farbe	White to Off-White
BRN	1884366
CAS Datenbank	364-62-5(CAS DataBase Reference)
NIST chemische Informationen	Benzamide, 4-amino-5-chloro-n-[2-(diethylamino)ethyl]-2-methoxy-(364-62-5)

Sicherheit

Kennzeichnung gefährlicher	Xn
R-Sätze:	22-64
S-Sätze:	36/37
WGK Germany	3
HS Code	2924.29.7790
Giftige Stoffe Daten	364-62-5(Hazardous Substances Data)

Gefahreninformationscode (GHS)

4-Amino-5-chloro-N-(2-(diethylamino)ethyl)-2-methoxybenzamide Chemische Eigenschaften,Einsatz,Produktion Methoden

Chemische Eigenschaften
White or almost white, fine powder.
Originator
Primperan,Delagrange,France,1964
Verwenden
Metoclopramide is a treatment of choice of post-operative nausea and vomiting (PONV) prophylaxis.
Verwenden
antidiabetic
Definition
ChEBI: A member of the class of benzamides resulting from the formal condensation of 4-amino-5-chloro-2-methoxybenzoic acid with the primary amino group of N,N-diethylethane-1,2-diamine.
Manufacturing Process
The N-(diethylaminoethyl)-2-methoxy-4-aminobenzamide used as the starting material may be prepared from o-toluidine. The o-toluidine is initially nitrated with nitric acid to produce 4-nitro-o-toluidine. The 4-nitro-o-toluidine is then converted to 2-hydroxy-4-nitrotoluene by heating with nitrous acid. By reacting the resulting 2-hydroxy-4-nitrotoluene with dimethyl sulfate, 2- methoxy-4-nitrotoluene is formed. The 2-methoxy-4-nitrotoluene is oxidized with potassium permanganate to produce 2-methoxy-4-nitrobenzoic acid. The latter substituted benzoic acid is treated with thionyl chloride to form 2- methoxy-4-nitrobenzoyl chloride. A methyl ethyl ketone solution of the 2- methoxy-4-nitrobenzoyl chloride is added over a period of about 1? hours to a methyl ethyl ketone solution containing an equal molecular quantity of N,Ndiethylethylene diamine while stirring and maintaining the temperature between 0°C and 5°C. The N-(diethylaminoethyl)-2-methoxy-4- nitrobenzamide hydrochloride formed precipitates. It is filtered, washed twice with methyl ethyl ketone, dissolved in alcohol, and reduced catalytically in an absolute isopropyl alcohol solution to form N-(diethylaminoethyl)-2-methoxy- 4-aminobenzamide. The base is obtained by precipitating with sodium hydroxide.
80 g (0.3mol) of N-(2-diethylaminoethyl)-2-methoxy-4-aminobenzamide are dissolved in small portions in 150 cc of acetic acid. The mixture is cooled and 45 g (0.45 mol) of acetic anhydride are added, and the solution obtained is heated for two hours on a water bath. After cooling, the solution is decanted into a round-bottomed flask with a stirrer, a thermometer and a tube for introducing the chlorine. It is stirred and the current of chlorine is passed through, the temperature being maintained between 20°C and 25°C. The stirring is continued for one hour after the completion of the absorption of the chlorine.
The mixture obtained is poured into 2 liters of water and the base is precipitated with 30% soda. The precipitated base is extracted with 400 cc of methylene chloride. After evaporation of the solvent, the N-(2- diethylaminoethyl)-2-methoxy-4-acetamino-5-chlorobenzamide formed crystallizes. The melting point is 86°C to 87°C and the yield is 95%.
To obtain the corresponding amino derivative, 109 g of base are heated under agitation in a round-bottomed flask with 300 cc of 35-36% concentrated hydrochloric acid and 600 cc of water. It is heated on a water bath until dissolution is complete, then maintained at boiling point for 90 minutes, cooled, diluted with 1 liter of water, and neutralized with about 350 cc of 30% soda. The N-(2-diethylaminoethyl)-2-methoxy-4-amino-5-chlorobenzamide formed crystallizes, is centrifuged and washed in water. Its melting point is 122°C and the yield is 74%.
To obtain the corresponding dihydrochloride, the base is dissolved in absolute alcohol (3 volumes) and to that solution is added 5 N alcoholic hydrochloric acid. The dihydrochloride precipitates, is centrifuged and washed with alcohol. It is a solid white material, having a melting point of 134°C to 135°C.
Trademarks
Maxolon (King); Reglan (Baxter Healthcare); Reglan (Robins); Reglan (Schwarz Pharma).
Therapeutic Function
Antiemetic
Allgemeine Beschreibung
Metoclopramide is typically employed as an antiemetic drug or a gastrointestinal prokinetic drug in adults and children.

4-Amino-5-chloro-N-(2-(diethylamino)ethyl)-2-methoxybenzamide Upstream-Materialien And Downstream Produkte

Metoclopramid Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

364-62-5, 4-Amino-5-chloro-N-(2-(diethylamino)ethyl)-2-methoxybenzamide Verwandte Suche:

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