brivudine and its Impurities
Brivudine is used for the treatment of herpes zoster in adult patients. Brivudine is an antiviral drug.. Reference standards of Brivudine API, and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below
((2R,3S,5R)-3-Acetoxy-5-(5-methyl-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)tetrahydrofuran-2-yl)methyl Acetate
((2R,3S,5R)-3-Acetoxy-5-(5-methyl-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)tetrahydrofuran-2-yl)methyl Acetate
Catalogue No.:PA 29 22530
CAS :
6979-97-1
Molecular Formula : C14H18N2O7
Molecular Weight : 326.31
(E)-3-(1-((2R,4S,5R)-4-acetoxy-5-(acetoxymethyl)tetrahydrofuran-2-yl)-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-5-yl)acrylic Acid
(E)-3-(1-((2R,4S,5R)-4-acetoxy-5-(acetoxymethyl)tetrahydrofuran-2-yl)-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-5-yl)acrylic Acid
Catalogue No.:PA 29 22540
CAS :
NA
Molecular Formula : C16H18N2O9
Molecular Weight : 382.33
5-(2,2-Dibromovinyl)-1-((2R,4S,5R)-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)pyrimidine-2,4(1H,3H)-dione
5-(2,2-Dibromovinyl)-1-((2R,4S,5R)-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)pyrimidine-2,4(1H,3H)-dione
Catalogue No.:PA 29 22550
CAS :
61135-36-2
Molecular Formula : C11H12Br2N2O5
Molecular Weight : 412.03
1-((2R,4S,5R)-4-Hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-2,4-dioxo-1,2,3,4-tetrahydropyrimidine-5-carbaldehyde
1-((2R,4S,5R)-4-Hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-2,4-dioxo-1,2,3,4-tetrahydropyrimidine-5-carbaldehyde
Catalogue No.:PA 29 0221000
CAS :
4494-26-2
Molecular Formula : C10H12N2O6
Molecular Weight : 256.21
7-[2-C-Ethynyl-5-O-[hydroxy[[hydroxy(phosphonooxy)phosphinyl]oxy]phosphinyl]-β-D-ribofuranosyl]-7H-pyrrolo[2,3-d]pyrimidin-4-amine
7-[2-C-Ethynyl-5-O-[hydroxy[[hydroxy(phosphonooxy)phosphinyl]oxy]phosphinyl]-β-D-ribofuranosyl]-7H-pyrrolo[2,3-d]pyrimidin-4-amine
Catalogue No.:PA 29 0221001
CAS :
1291103-01-9
Molecular Formula : C13H17N4O13P3
Molecular Weight : 530.22
(2R,3S,5R)-5-(5-((E)-2-Bromovinyl)-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)-2-(((4-chlorobenzoyl)oxy)methyl)tetrahydrofuran-3-yl 4-chlorobenzoate
(2R,3S,5R)-5-(5-((E)-2-Bromovinyl)-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)-2-(((4-chlorobenzoyl)oxy)methyl)tetrahydrofuran-3-yl 4-chlorobenzoate
Catalogue No.:PA 29 0221006
CAS :
87531-10-0
Molecular Formula : C25H19BrCl2N2O7
Molecular Weight : 610.24
7-Bromo-6-((E)-2-bromovinyl)-2-((2S,4S,5R)-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-8-(1-((2S,4S,5R)-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-5-yl)-2,4-diazabicyclo[4.2.0]octane-3,5-dione
7-Bromo-6-((E)-2-bromovinyl)-2-((2S,4S,5R)-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-8-(1-((2S,4S,5R)-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-5-yl)-2,4-diazabicyclo[4.2.0]octane-3,5-dione
Catalogue No.:PA 29 0221007
CAS :
NA
Molecular Formula : C22H26Br2N4O10
Molecular Weight : 666.28
