Nilvadipine Property

Melting point:

148-150°C

Boiling point:

511.83°C (rough estimate)

Density 

1.3937 (rough estimate)

refractive index 

1.5900 (estimate)

storage temp. 

Keep in dark place,Sealed in dry,2-8°C

solubility 

DMSO: soluble15mg/mL, clear

form 

powder

pka

-0.81±0.70(Predicted)

color 

white to beige

Merck 

14,6545

Stability:

Stable for 1 year from date of purchase as supplied. Solutions in DMSO or ethanol may be stored at -20°C for up to 3 months.

Safety

Hazard Codes 

Xn

Risk Statements 

22

WGK Germany 

3

RTECS 

US7968300

HS Code 

2933.39.9200

Toxicity

LD50 oral in rat: 1560mg/kg

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P270Do not eat, drink or smoke when using this product.

P271Use only outdoors or in a well-ventilated area.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P332+P313IF SKIN irritation occurs: Get medical advice/attention.

P337+P313IF eye irritation persists: Get medical advice/attention.

Nilvadipine Chemical Properties,Usage,Production

Description

Nilvadipine is a new, second-generation calcium channel blocker effective in the treatment of hypertension and angina pectoris. Its potent inhibitory effect on the stimulated chemotaxis of smooth muscle cells and protective action against calcium deposition suggest that nilvadipine may be useful for preventing and treating atherosclerosis.

Chemical Properties

Yellow Prisms

Originator

Fujisawa (Japan)

Uses

Used as an antihypertensive and antianginal.

Uses

antihypertensive;calcium channel blocker

Definition

ChEBI: Nilvadipine is an isopropyl ester, a methyl ester, a nitrile and a dihydropyridine.

Manufacturing Process

To a solution of isopropyl ester of 6-formyl-5-methoxycarbonyl-2-methyl-4-(3- nitrophenyl)-1,4-dihydropyridine- 3-carboxylic acid (4.5 g) in acetic acid (35 ml) were added hydroxylamine hydrochloride (0.97 g) and sodium acetate (1.43 g), and the mixture was stirred at ambient temperature for 2.5 hours. After acetic anhydride (4.14 g) was added to this reaction mixture, the mixture was stirred at ambient temperature for 1.5 hours and at 95-100°C for additional 4 hours. The acetic acid and the excess of acetic anhydride were removed in vacuum, followed by adding water to the residue and it was neutralized with a saturated aqueous solution of sodium bicarbonate. This aqueous suspension was extracted twice with ethyl acetate, and the combined extract was washed with water, dried over anhydrous magnesium sulfate and evaporated to dryness under reduced pressure to give a reddish-brown oil (4.88 g), which was chromatographed over silica gel (150 g) with a mixture of benzene and ethyl acetate (10:1 by volume) as an eluent to give a crude crystals (2.99 g). These were recrystallized from ethanol to give yellow prisms (1.89 g) of isopropyl ester of 6-cyano-5-methoxycarbonyl-2-methyl-4-(3- nitrophenyl)-1,4-dihydropyridine-3-carboxylic acid melting point 148-150°C (yellow prisms from ethanol); [α]D20 = 222.4° (c = 1 in methanol).

brand name

Nivadil

Therapeutic Function

Calcium entry blocker, Antihypertensive

References

1) Paris?et al. (2014),?The spleen tyrosine kinase (Syk) regulates Alzheimer amyloid-β production and Tau hyperphosphorylation; J. Biol. Chem.,?289?33927 2) Rosenthal (1994),?Nilvadipine: profile of a new calcium antagonist. An overview; J. Cardiovasc. Pharmacol. 24 Suppl 2?S92 3) Nimmrich and Eckert (2013),?Calcium channel blockers and dementia; Br. J. Pharmacol.?169?1203 4) Otori?et al. (2003),?Protective effect of nilvadipine against glutamate neurotoxicity in purified retinal ganglion cells; Brain Res.?961?213