-
Name
Progabide
- EINECS 263-679-4
- CAS No. 62666-20-0
- Density 1.3g/cm3
- Solubility 37.16mg/L(37 oC)
- Melting Point 133-135°; mp 142.5° (Kaplan, J. Med. Chem.)
- Formula C17H16 Cl F N2 O2
- Boiling Point 525.363°C at 760 mmHg
- Molecular Weight 334.778
- Flash Point 271.53°C
- Transport Information
- Appearance
- Safety Moderately toxic by ingestion and intraperitoneal routes. Questionable carcinogen with experimental neoplastigenic data reported. When heated to decomposition it emits toxic vapors of NOx, F−, and, Cl−.
- Risk Codes
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Molecular Structure
- Hazard Symbols
- Synonyms Gabren;Gabrene; Halogabide; Progabide; SL 76-002; SL 76002
- PSA 75.68000
- LogP 3.98790
Progabide Chemical Properties
4-(((4-CHLOROPHENYL)(5-FLUORO-2-HYDROXYPHENYL)METHYLENE)AMINO)-BUTANAMIDE(62666-20-0) has the Molecular Formula of C17H16ClFN2O2 and the Molecular Weight of 334.80.
The structure:
Progabide Production
There are synthetic methods of 4-(((4-CHLOROPHENYL)(5-FLUORO-2-HYDROXYPHENYL)METHYLENE)AMINO)-BUTANAMIDE(62666-20-0).
Affording to 4-fluorophenyl-4-chlorobenzoate (IV),the reaction of p-chlorobenzoic acid (I) with SOCl2 gives p-chlorobenzoyl chloride (II), which is esterified with 4-fluorophenol (III)
The isomerization of (IV) with AlCl3 yields 4-chloro-2'-hydroxy-5'-fluorobenzophenone (V), which is condensed with 4-aminobutyric acid (VI) by means of sodium methoxide in ethanol giving 4-[[alpha-(p-chlorophenyl)-5-fluoro-2-hydroxybenzylidene]amino]butyric acid (VII).
The reaction of (VII) with SOCl2 in THF affords the corresponding acyl chloride (VIII).And then it treated with NH3.
By treatment with carbonyldiimidazole (A) and liquid NH3 in THF, converting the acid (VII) into its amide is an alternative way.
Progabide Toxicity Data With Reference
| 1. | orl-rat LD50:1350 mg/kg | LMSED6 L.E.R.S. Monograph Series. Laboratories d’Etudes et de Recherches Synthelabo Monograph Series. 3 (1985),203. | ||
| 2. | orl-mus LD50:1350 mg/kg | LMSED6 L.E.R.S. Monograph Series. Laboratories d’Etudes et de Recherches Synthelabo Monograph Series. 3 (1985),203. | ||
| 3. | ipr-mus LD50:900 mg/kg | USXXAM United States Patent Document. (Commissioner of Patents and Trademarks, Washington, DC 20231) #4094992 . |
Progabide Safety Profile
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