Title:  Efaproxiral 
CAS Registry Number:  131179-95-8 
CAS Name:  2-[4-[2-[(3,5-Dimethylphenyl)amino]-2-oxoethyl]phenoxy]-2-methylpropanoic acid 
Additional Names:  2-4-[[(3,5-dimethylanilino)carbonyl]methyl]phenoxy-2-methylpropionic acid 
Manufacturers' Codes:  RSR-13 
Molecular Formula:  C20H23NO4 
Molecular Weight:  341.40 
Percent Composition:  C 70.36%, H 6.79%, N 4.10%, O 18.75% 
Literature References:  Allosteric modifier of hemoglobin (Hb).  Binds in the central water cavity of the Hb molecule causing a conformational change such that bound oxygen is released more readily.  Prepd not claimed:  D. J. Abraham et al., US 5049695 (1991 to Center Innovative Technol.); eidem., J. Med. Chem. 34, 752 (1991).  Oxygen binding affinities and mechanism of action:  D. J. Abraham et al., Biochemistry 31, 9141 (1992).  Effect on myocardial oxygen concentration:  P. S. Pagel et al., J. Pharmacol. Exp. Ther. 285, 1 (1998).  Antimetastatic effects:  B. A. Teicher et al., Cancer Chemother. Pharmacol. 42, 24 (1998).  Clinical pharmacokinetics and pharmacodynamics:  L. Kleinberg et al., J. Clin. Oncol. 17, 2593 (1999).  Clinical evaluation in brain tumor therapy:  eidem, ibid. 20, 3149 (2002). 
Properties:  mp 85°. 
Melting point:  mp 85° 
Therap-Cat:  Antineoplastic adjunct (radiosensitizer). 
Keywords:  Antineoplastic Adjunct; Radiosensitizer.   |