Title:  Cilansetron 
CAS Registry Number:  120635-74-7 
CAS Name:  (10R)-5,6,9,10-Tetrahydro-10-[(2-methyl-1H-imidazol-1-yl)methyl]-4H-pyrido[3,2,1-jk]carbazol-11(8H)-one 
Additional Names:  l-10[(2-methyl-1H-imidazol-1-yl)methyl]-5,6,8,9,10,11-hexahydro-4H-pyrido[3,2,1-jk]carbazol-11-one 
Manufacturers' Codes:  KC-9946 
Molecular Formula:  C20H21N3O 
Molecular Weight:  319.40 
Percent Composition:  C 75.21%, H 6.63%, N 13.16%, O 5.01% 
Literature References:  Serotonin 5-HT3 receptor antagonist.  Prepn:  H. H. Haeck et al., EP 297651; eidem, US 4939136 (1989, 1990 both to Duphar Int. Res.); I. van Wijngaarden et al., J. Med. Chem. 36, 3693 (1993).  Absolute configuration studies:  P. G. Jones et al., Acta Crystallogr. E59, o38, o41 (2003).  Pharmacology:  A. Botella et al., Fundam. Clin. Pharmacol. 12, 619 (1998).  Mechanism of action study:  K. Hillsley et al., Neurosci. Lett. 278, 137 (2000).  Clinical pharmacology:  G. Stacher et al., Br. J. Clin. Pharmacol. 49, 429 (2000).  Review of development and therapeutic potential:  idem, Curr. Opin. Invest. Drugs 2, 1432-1436 (2001); of clinical experience:  W. D. Chey, B. D. Cash, Expert Opin. Invest. Drugs 14, 185-193 (2005). 
  
Derivative Type:  Hydrochloride  
CAS Registry Number:  120635-72-5;  209859-87-0 (monohydrate) 
Trademarks:  Calmactin (Solvay) 
Molecular Formula:  C20H21N3O.HCl 
Molecular Weight:  355.86 
Percent Composition:  C 67.50%, H 6.23%, N 11.81%, O 4.50%, Cl 9.96% 
Properties:  Crystals, mp 226-228°.  [a]D5 -5.0° (c = 1.8 in methanol). 
Melting point:  Crystals, mp 226-228° 
Optical Rotation:  [a]D5 -5.0° (c = 1.8 in methanol) 
  
Therap-Cat:  In treatment of irritable bowel syndrome. 
Keywords:  Serotonin Receptor Antagonist.   |