Caspofungin
Title: Caspofungin
CAS Registry Number: 162808-62-0
CAS Name: 1-[(4R,5S)-5-[(2-Aminoethyl)amino]-N2-(10,12-dimethyl-1-oxotetradecyl)-4-hydroxy-L-ornithine]-5-[(3R)-3-hydroxy-L-ornithine]-pneumocandin B0
Molecular Formula: C52H88N10O15
Molecular Weight: 1093.31
Percent Composition: C 57.13%, H 8.11%, N 12.81%, O 21.95%
Literature References: Semisynthetic echinocandin antifungal that inhibits 1,3-b-D-glucan synthase which is required for cell wall synthesis. Prepn: J. M. Balkovec et al., WO 9421677; eidem, US 5378804 (1994, 1995 both to Merck & Co.). HPLC/MS determn in plasma: C. M. Chavez-Eng et al., J. Chromatogr. B 721, 229 (1999). Clinical study vs amphotericin B, q.v. in Candida esophagitis: A. Villanueva et al., Clin. Infect. Dis. 33, 1529 (2001). Review of in vitro antifungal activity, pharmacology and clinical development: A. H. Groll, T. J. Walsh, Expert Opin. Invest. Drugs 10, 1545-1558 (2001); A. Hoang, Am. J. Health-Syst. Pharm. 58, 1206-1214 (2001).
 
Derivative Type: Acetate
CAS Registry Number: 179463-17-3
Manufacturers' Codes: MK-0991
Trademarks: Cancidas (Merck & Co.)
Molecular Formula: C52H88N10O15.2C2H4O2
Molecular Weight: 1213.42
Percent Composition: C 55.43%, H 7.97%, N 11.54%, O 25.05%
Properties: Hygroscopic white to off-white powder. Freely sol in water, methanol; slightly sol in ethanol.
 
Therap-Cat: Antifungal.
Keywords: Antifungal (Antibiotics); Echinocandins.

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