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ChemicalBook--->CAS DataBase List--->31329-57-4

31329-57-4

31329-57-4 Structure

31329-57-4 Structure
IdentificationMore
[Name]

NAFRONYL
[CAS]

31329-57-4
[Synonyms]

NAFRONYL
2-(Diethylamino)ethyl 3-(1-naphthyl)-2-(tetrahydro-2-furanylmethyl)propanoate
2-(Diethylamino)ethyl ester tetrahydro-alpha-(1-naphthalenylmethyl)-2-furanpropanic acid
2-(Diethylamino)ethyl tetrahydro-alpha-(1-naphthylmethyl)-2-furanpropionate
2-(diethylamino)ethyltetrahydro-alpha-(1-naphthylmethyl)-2-furanpropionate
2-Furanpropanoic acid, tetrahydro-alpha-(1-naphthalenylmethyl)-, 2-(diethylamino)ethyl ester
2-Furanpropionic acid, tetrahydro-alpha-(1-naphthylmethyl)-, 2-(diethylamino)ethyl ester
3-(1-Naphthyl)-2-tetrahydrofurfurylpropionic acid 2-(diethylamino)ethyl ester
3-(1-naphthyl)-2-tetrahydrofurfurylpropionicacid2-(diethylamino)ethylester
alpha-Tetrahydrofurfuryl-1-naphthalenepropionic acid 2-(diethylamino)ethyl ester
alpha-tetrahydrofurfuryl-1-naphthalenepropionicacid2-(diethylamino)ethyles
Dubimax
Gevatran
Naftidrofuryl
N-Diethylaminoethyl beta-(1-naphthyl)-beta-tetrahydrofuryl isobutyrate
n-diethylaminoethylbeta-(1-naphthyl)-beta-tetrahydrofurylisobutyrate
Tetrahydro-alpha-(1-naphthalenylmethyl)-2-furanpropanoic acid 2-(diethylamino)ethyl ester
tetrahydro-alpha-(1-naphthalenylmethyl)-2-furanpropanoicacid2-(diethylamino
Tetrahydro-alpha-(1-naphthylmethyl)-2-furanpropanoic acid 2-(diethylamino)ethyl ester
tetrahydro-alpha-(1-naphthylmethyl)-2-furanpropanoicacid2-(diethylamino)eth
[EINECS(EC#)]

250-572-2
[Molecular Formula]

C24H33NO3
[MDL Number]

MFCD00868290
[Molecular Weight]

383.52
[MOL File]

31329-57-4.mol
Chemical PropertiesBack Directory
[Boiling point ]

bp0.5 190°
[density ]

d431 1.0465
[refractive index ]

nD29 1.5513
[storage temp. ]

Refrigerator
[solubility ]

Chloroform (Slightly), Ethyl Acetate (Slightly)
[form ]

Oil
[pka]

9.21±0.25(Predicted)
[color ]

Colourless to Dark Yellow
[CAS DataBase Reference]

31329-57-4(CAS DataBase Reference)
Raw materials And Preparation ProductsBack Directory
[Raw materials]

N,N-Dimethylformamide-->Benzyl chloride-->Sodium ethoxide-->alpha-(1-Naphthylmethyl)-2-tetrahydrofuranpropionic acid diethylaminoethyl ester oxalate-->Alkali Metals, plasma standard solution, Specpure, Ba,Be,Ca,Cs,K,Li,Mg,Na,Rb,Sr, 100μg/ml-->Diethylaminoethanol-->Oxalic acid
Hazard InformationBack Directory
[Originator]

Dusodril,Roland,W. Germany,1968
[Uses]

Nafronyl is a selective inhibitor of serotonin receptors
[Uses]

Nafronyl is a selective inhibitor of serotonin receptors. Nafronyl is a vasodilator used in the treatment of intermittent claudication.
[Uses]

Vasodilator.
[Definition]

ChEBI: 2-(1-naphthalenylmethyl)-3-(2-oxolanyl)propanoic acid 2-(diethylamino)ethyl ester is a member of naphthalenes.
[Manufacturing Process]

30 grams (0.106 mol) of β-(1-naphthyl)-β'-tetrahydrofuryl isobutyric acid are heated under reflux for 8 1/2 hours in 230 cc of isopropanol with 14 grams (0.103 mol) of β-chloroethyl-N-diethylamine. After evaporation of the isopropanol in vacuo, the syrupy residue is treated with a solution of K2CO3. Extraction with ether is carried out after drying over Na2SO4.
Distillation of the extract yields 28.5 grams of a very viscous yellow liquid with a BP0.95-1.09millibar = 198° to 202°C. The yield is 70.5% (theoretical quantity = 40.5 grams).1.3 grams (0.0103 mol) of dihydrated oxalic acid are dissolved while being made tepid in 8 cc of acetone. The cooled solution has added thereto 4 grams (0.0104 mol) of N-diethylaminoethyl-β-(1-naphthyl)-β'- tetrahydrofuryl isobutyrate, obtained according to the process described above and dissolved in 10 cc of acetone. The solution is brought to boiling point for 15 minutes. After cooling to ambient temperature, it is placed in a refrigerator. Crystallization occurs after 2 hours, the crystals which have formed are separated by centrifuging, and after washing in hexane and drying in vacuo 3.5 grams of white crystals are obtained. After being recrystallized three times, in alcohol and then in a mixture of alcohol and ethyl acetate, the product is analytically pure and has a MP = 110° to 111°C (heating stage).
[Brand name]

Praxilene (Lipha, S.A., France).
[Therapeutic Function]

Vasodilator
[World Health Organization (WHO)]

Naftidrofuryl is a vasoactive spasmolytic used to treat peripheral vascular disease. It also improves the oxygen utilization in tissues.
Safety DataBack Directory
[Toxicity]

LD50 in mice (mg/kg): 365 orally (Bessin)
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