Mepivacaine
- Product Name
- Mepivacaine
- CAS No.
- 22801-44-1
- Chemical Name
- Mepivacaine
- Synonyms
- MEPIVACAINE;A pp because;MepivacaineBase;Mepivacaine USP/EP/BP;Mepivacaine Impurity A;Mepivacaine Impurity 1;Mepivacaine HCl (base);Mepivacaine hydorchloride;Trimethocaine hydrochloride;Mepivacaine(Cas number22801-44-1)
- CBNumber
- CB8460318
- Molecular Formula
- C15H22N2O
- Formula Weight
- 246.35
- MOL File
- 22801-44-1.mol
Mepivacaine Property
- Melting point:
- 147-151°C
- storage temp.
- -20°C Freezer
- solubility
- Chloroform (Slightly), DMSO (Slightly), Ethanol (Slightly), Methanol (Slightly)
- form
- Solid
- pka
- pKa 7.73(H2O,t =25±0.2,I=0.01(NaCl)) (Uncertain)
- color
- White to Off-White
- InChI
- InChI=1S/C15H22N2O/c1-11-7-6-8-12(2)14(11)16-15(18)13-9-4-5-10-17(13)3/h6-8,13H,4-5,9-10H2,1-3H3,(H,16,18)
- InChIKey
- INWLQCZOYSRPNW-UHFFFAOYSA-N
- SMILES
- N1(C)CCCCC1C(NC1=C(C)C=CC=C1C)=O
- CAS DataBase Reference
- 22801-44-1(CAS DataBase Reference)
- EPA Substance Registry System
- 2-Piperidinecarboxamide, N-(2,6-dimethylphenyl)-1-methyl- (22801-44-1)
Mepivacaine Chemical Properties,Usage,Production
Originator
Carboraine,Winthrop,US,1960
Uses
Mepivacaine can be used in biological study of 2-adamantanamine produces prolonged spinal block in rats.
Uses
Local anesthetic.
Definition
ChEBI: Mepivacaine is a piperidinecarboxamide in which N-methylpipecolic acid and 2,6-dimethylaniline have combined to form the amide bond. It is used as a local amide-type anaesthetic. It has a role as a local anaesthetic and a drug allergen.
Manufacturing Process
Ethyl magnesium bromide is prepared in the usual way by reacting 185 parts by weight of ethyl bromide in 800 parts of anhydrous ether with 37 parts by weight of magnesium turnings. Under vigorous stirring 121 parts of 2,6- dimethyl aniline are added at a rate depending on the vigor of the gas evaporation. When the evolution of gas has ceased, 85 parts by weight of Nmethylpipecolic acid ethyl ester are added to the 2,6-dimethyl aniline magnesium bromide slurry. The mixture is refluxed for ? hour with continued stirring, after which it is cooled down. Dilute hydrochloric acid is added carefully in order to dissolve and hydrolyze the magnesium compound formed.
The pH is adjusted to 5.5 and the water phase separated and extracted with additional ether in order to remove the surplus dimethyl aniline. After addition of an excess of ammonia to the solution, the reaction product, Nmethylpipecolic acid 2,6-dimethyl anilide, is recovered by extraction with isoamyl alcohol. The isoamyl alcohol solution is evaporated to dryness, the product dissolved in dilute hydrochloric acid, treated with charcoal and reprecipitated with NaOH. N-methylpipecolic acid 2,6-dimethyl anilide is obtained in crystalline form.
Therapeutic Function
Local anesthetic
General Description
Mepivacaine hydrochloride is available in 1% to 3% solutionsand is indicated for infiltration anesthesia, dental procedures,peripheral nerve block, or epidural block. The onset of anesthesiais rapid, ranging from about 3 to 20 minutes for sensoryblock. Mepivacaine is rapidly metabolized in the liver with50% of the administered dose excreted into the bile asmetabolites. The metabolites are reabsorbed in the intestineand excreted in the kidney with only a small percentage foundin the feces. Less than 5% to 10% of the administered dose isfound unchanged in the urine. The primary metabolic productsare the N-demethylated metabolite and the 3 and 4 phenolicmetabolites excreted as their glucuronide conjugates.
Clinical Use
Mepivacaine hydrochloride [N-(2, 6-dimethylphenyl)-1-methyl 2-piperidinecarboxamide monohydrochloride] is an amino amide-type local anesthetic agent widely used to provide regional analgesia and anesthesia by local infiltration, peripheral nerve block, and epidural and caudal blocks. The pharmacological and toxicological profile of mepivacaine is quite similar to that of lidocaine, except that mepivacaine has a slightly longer duration of action and lacks the vasodilator activity of lidocaine. For this reason, it serves as an alternate choice for lidocaine when addition of epinephrine is not recommended in patients with hypertensive vascular disease.
Synthesis
Mepivacaine is N-(2,6-dimethylphenyl)-1-methyl-2-piperindincarboxamide (2.2.3). Two primary methods of synthesis have been suggested. According to the first, mepivacaine is synthesized by reacting the ethyl ester of 1-methylpiperindine-2-carboxylic acid with 2,6-dimethylanilinomagnesium bromide, which is synthesized from 2,6- dimethylaniline and ethylmagnesium bromide [12–14].
According to the figure below, reacting 2,6-dimethylaniline with the acid chloride of pyridine-carboxylic acid first gives the 2,6-xylidide of α-picolinic acid (2.2.4). Then the aromatic pyridine ring is reduced to piperidine by hydrogen in the presence of a platinum on carbon catalyst.
The resulting 2,6-xylidide α-pipecolinic acid (2.2.5) is methylated to mepivacaine using formaldehyde with simultaneous reduction by hydrogen in the presence of platinum on carbon catalyst [15].
Metabolism
Mepivacaine undergoes extensive hepatic metabolism catalyzed by CYP1A2, with only a small percentage of the administered dosage (<10%) being excreted unchanged in the urine. The major metabolic biotransformations of mepivacaine are N-dealkylation (to give the N-demethylated compound 2′,6′-pipecoloxylidide) and aromatic hydroxylations. These metabolites are excreted as their corresponding glucuronides.
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View Lastest Price from Mepivacaine manufacturers
- Product
- Mepivacaine 22801-44-1
- Price
- US $0.00-0.00/kg
- Min. Order
- 1kg
- Purity
- 99%
- Supply Ability
- 500
- Release date
- 2023-07-14
- Product
- Mepivacaine 22801-44-1
- Price
- US $3.00-1.00/kg
- Min. Order
- 1kg
- Purity
- 99.9%
- Supply Ability
- 10 tons
- Release date
- 2024-03-27
- Product
- Mepivacaine 22801-44-1
- Price
- US $25.00-10.00/kg
- Min. Order
- 1kg
- Purity
- 99.8%
- Supply Ability
- 200tons/year
- Release date
- 2024-02-22