Title: Valacyclovir
CAS Registry Number: 124832-26-4
CAS Name: L-Valine 2-[(2-amino-1,6-dihydro-6-oxo-9H-purin-9-yl)methoxy]ethyl ester
Additional Names: L-valine ester with 9-[(2-hydroxyethoxy)methyl]guanine; valaciclovir; ValACV
Molecular Formula: C13H20N6O4
Molecular Weight: 324.34
Percent Composition: C 48.14%, H 6.22%, N 25.91%, O 19.73%
Literature References: L-Valine ester prodrug of acyclovir, q.v. Prepn: T. A. Krenitsky et al., EP 308065; L. M. Beauchamp, US 4957924 (1989, 1990 both to Wellcome). Evaluation as prodrug: L. M. Beauchamp et al., Antiviral Chem. Chemother. 3, 157 (1992). Clinical pharmacokinetics: S. Weller et al., Clin. Pharmacol. Ther. 54, 595 (1993). Review of pharmacology and clinical efficacy in herpes virus infections: C. M. Perry, D. Faulds, Drugs 52, 754-772 (1996). Clinical trial to prevent cytomegalovirus disease in renal transplantation: D. Lowance et al., N. Engl. J. Med. 340, 1462 (1999); to prevent transmission of genital herpes: L. Corey et al., ibid. 350, 11 (2004).
Derivative Type: Hydrochloride
CAS Registry Number: 124832-27-5
Manufacturers' Codes: 256U; BW-256U87; BW-256
Trademarks: Valtrex (GSK)
Properties: Crystalline solid, occurs as hydrate. uv max (water): 252.8 nm (e 8530). Soly in water: 174 mg/ml.
Absorption maximum: uv max (water): 252.8 nm (e 8530)，
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《山东医药工业》1997年 第6期 1-3
Title: Valacyclovir
CAS Registry Number: 124832-26-4
CAS Name: L-Valine 2-[(2-amino-1,6-dihydro-6-oxo-9H-purin-9-yl)methoxy]ethyl ester
Additional Names: L-valine ester with 9-[(2-hydroxyethoxy)methyl]guanine; valaciclovir; ValACV
Molecular Formula: C13H20N6O4
Molecular Weight: 324.34
Percent Composition: C 48.14%, H 6.22%, N 25.91%, O 19.73%
Literature References: L-Valine ester prodrug of acyclovir, q.v. Prepn: T. A. Krenitsky et al., EP 308065; L. M. Beauchamp, US 4957924 (1989, 1990 both to Wellcome). Evaluation as prodrug: L. M. Beauchamp et al., Antiviral Chem. Chemother. 3, 157 (1992). Clinical pharmacokinetics: S. Weller et al., Clin. Pharmacol. Ther. 54, 595 (1993). Review of pharmacology and clinical efficacy in herpes virus infections: C. M. Perry, D. Faulds, Drugs 52, 754-772 (1996). Clinical trial to prevent cytomegalovirus disease in renal transplantation: D. Lowance et al., N. Engl. J. Med. 340, 1462 (1999); to prevent transmission of genital herpes: L. Corey et al., ibid. 350, 11 (2004).
Derivative Type: Hydrochloride
CAS Registry Number: 124832-27-5
Manufacturers' Codes: 256U; BW-256U87; BW-256
Trademarks: Valtrex (GSK)
Properties: Crystalline solid, occurs as hydrate. uv max (water): 252.8 nm (e 8530). Soly in water: 174 mg/ml.
Absorption maximum: uv max (water): 252.8 nm (e 8530)，
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