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Manidipine hydrochloride

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Manidipine hydrochloride Basic information

Product Name:
Manidipine hydrochloride
Synonyms:
  • 4-(diphenylmethyl)-1-piperazinyl)ethylmethylester,dihydrochloride
  • cv-4093dihydrochlorde
  • franidipinehydrochloride
  • MANIDIPINE DIHYDROCHLORIDE
  • MANIDIPINE HYDROCHLORIDE
  • 1,4-dihydro-2,6-dimethyl-4-(3-nitrophenyl)-3,5-pyridinedicarboxylic acid 2-[4-(diphenylmethyl)-1-piperazinyl]ethyl methyl ester hydrochloride
  • 3,5-Pyridinedicarboxylic acid, 1,4-dihydro-2,6-dimethyl-4-(3-nitrophenyl)-, 2-[4-(diphenylmethyl)-1-piperazinyl]ethyl methyl ester, dihydrochloride (9CI)
  • Calslot
CAS:
89226-75-5
MF:
C35H40Cl2N4O6
MW:
683.62
EINECS:
680-304-3
Product Categories:
  • Antihypertensive
  • API
Mol File:
89226-75-5.mol
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Manidipine hydrochloride Chemical Properties

Melting point:
157-163°; mp 174-180°; mp 167-170°
storage temp. 
under inert gas (nitrogen or Argon) at 2-8°C
solubility 
Soluble in DMSO (>25 mg/ml)
form 
solid
color 
White
Water Solubility 
Soluble in DMSO. Slightly soluble in water and ethanol /n
Merck 
14,5743
Stability:
Stable for 1 year from date of purchase as supplied. Solutions in DMSO may be stored at -20°C for up to 3 months.
InChIKey
UFIXGLLGFBWKAV-UHFFFAOYSA-N
SMILES
C1(C)NC(C)=C(C(OCCN2CCN(C(C3=CC=CC=C3)C3=CC=CC=C3)CC2)=O)C(C2=CC=CC([N+]([O-])=O)=C2)C=1C(OC)=O.[H]Cl
CAS DataBase Reference
89226-75-5(CAS DataBase Reference)
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Safety Information

RIDADR 
UN 2811 6.1/PG III
RTECS 
US7975300
HS Code 
2933.59.8000
HazardClass 
6.1
PackingGroup 
III
Toxicity
LD50 in male, female mice, male, female rats (mg/kg): 387, 340, 222, 199 s.c.; 62.2, 68.0, 66.5, 48.8 i.p.; 190, 171, 247, 156 orally (Chiba)
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Manidipine hydrochloride Usage And Synthesis

Description

Manidipine (89226-75-5) is a clinically useful antihypertensive.1,2 It is an inhibitor of L- and T-type calcium channels with high selectivity for vasculature.? Manidipine has recently been found to be an inhibitor (IC50 = 4.8 μM) of the SARS-CoV-2 main protease, 3CLpro.3 It also acts as an early entry inhibitor of human cytomegalovirus (EC50 = 3.57 μM) via inhibition of the Immediate-Early 2 (IE2) protein.4

Uses

Manidipine Dihydrochloride is a metabolite of Manidipine (M16400), a dihydropyridine calcium channel blocker that exhibits antihypertensive properties.

Uses

aldosterone antagonist

Definition

ChEBI: Manidipine dihydrochloride is a diarylmethane.

Synthesis

89226-50-6

89226-75-5

Synthesis of 3-(2-(4-phenylpiperazin-1-yl)ethyl)-5-methyl-2,6-dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylate from 3-(2-(4-phenylpiperazin-1-yl)ethyl)-5-methyl-2,6-dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3,5- Dicarboxylate dihydrochloride was prepared in the following general procedure: manidipine base (2.25 kg) was dissolved in a solvent mixture of dichloromethane (6.75 L) and methanol (4.5 L) and cooled to 0-10°C. Concentrated hydrochloric acid (1.07 L) was slowly added dropwise under stirring, and after completion of the dropwise addition, the reaction was continued with stirring for 1 hour by keeping the temperature at 0-10 °C. Subsequently, methyl tert-butyl ether (13.5 L) was added to the reaction system and stirring was continued for 1 h. A large amount of solid was observed to precipitate. Filtration was carried out and the filter cake was washed with a small amount of methyl tert-butyl ether. The filter cake was mixed with dichloromethane (22 L), refluxed and pulped for 1 hour, then cooled to room temperature and filtered again. The filter cake was washed with a small amount of methyl tert-butyl ether and finally dried at 40-50 °C in a blast to give a yellow solid product (2.05 kg). The yield of this step was 81.8% and the purity of the product was 99.8869% (see Figure 2 for HPLC analysis).

in vivo

Manidipine dihydrochloride (10 mg/kg, i.p., b.i.d. at day 4, day 5) prolongs survival in SFTSV-infected mice[4].
Manidipine dihydrochloride (25 mg/kg, i.p., b.i.d. for 2 d, then daily for 19 d) protects mice from JEV infection[5].
Manidipine dihydrochloride (3 mg/kg, i.g., once per day, 7 d) prevents isoproterenol-induced left ventricular hypertrophy in rats[7].

Animal Model:IFNAR-/- mice[4]
Dosage:10 mg/kg
Administration:Intraperitoneal injection (i.p. ), b.i.d. at day 4, day 5
Result:Exhibited a modest, but statistically significant increase in the survival rate of lethal animal model with SFTSV infection, significantly reduced viral titers in the spleen and kidney.
Animal Model:Adult female BALB/c mice (age, 4 weeks) [5]
Dosage:25 mg/kg
Administration:Intraperitoneal injection (i.p. ), b.i.d. for 2 days, then daily for 19 days
Result:Reduced the mortality rate from 73% to 20%, significantly reduced the viral load in infected mice while remarkably alleviated brain damage phenomena. Had little effect on peripheral JEV infection, which indicated that manidipine protected the mice against JEV-induced lethality by decreasing the viral load in the brain.
Animal Model:8-week-old male Wistar rats[7]
Dosage:3 mg/kg
Administration:Intragastric gavage (i.g.), once per day for 7 d
Result:Prevented isoproterenol-induced left ventricular hypertrophy (2.26±0.02 g/kg; p<0.01) as isoproterenol increased left ventricular weight (2.40±0.04 g/kg; p<0.01). Inhibited expression of mRNA of ANP (0.9-fold of the control value; p<0.01), collagen types I (1.1-fold; p<0.01) and type III (1.6-fold; p<0.01), and fibronectin (1.1-fold; p<0.01).

IC 50

T-type calcium channel

References

[1] MITSURU KAKIHANA  Akinobu N  Masahiro SUNO. Antihypertensive Effect of CV-4093-2HCI, a New Calcium Antagonist, in Three Rat Models of Hypertension[J]. Japanese journal of pharmacology, 1988, 48 2: Pages 223-228. DOI:10.1254/jjp.48.223
[2] KATE MCKEAGE  Lesley J S. Manidipine: a review of its use in the management of hypertension.[J]. Drugs, 2004, 64 17: 1923-1940. DOI:10.2165/00003495-200464170-00011
[3] MOHAMMAD M. GHAHREMANPOUR. Identification of 14 Known Drugs as Inhibitors of the Main Protease of SARS-CoV-2[J]. ACS Medicinal Chemistry Letters, 2020, 11 12: 2526-2533. DOI:10.1021/acsmedchemlett.0c00521
[4] BEATRICE MERCORELLI . Repurposing the clinically approved calcium antagonist manidipine dihydrochloride as a new early inhibitor of human cytomegalovirus targeting the Immediate-Early 2 (IE2) protein[J]. Antiviral research, 2018, 150: Pages 130-136. DOI:10.1016/j.antiviral.2017.12.014

Manidipine hydrochloride Preparation Products And Raw materials

Preparation Products

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