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Entecavir Impurity

Entecavir Impurity Basic information
Product Name:Entecavir Impurity
Synonyms:Entecavir Impurity;Entecavir Hydrate IMP;(1R,3S,4S)-ent-Entecavir;6H-Purin-6-one, 2-amino-1,9-dihydro-9-[(1R,3S,4R)-4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl]-, rel-;Entecavir (R,S,S)-Isomer
CAS:1333204-94-6
MF:C12H15N5O3
MW:277.28
EINECS:
Product Categories:
Mol File:1333204-94-6.mol
Entecavir Impurity Structure
Entecavir Impurity Chemical Properties
Boiling point 661.4±65.0 °C(Predicted)
density 1.81±0.1 g/cm3(Predicted)
pka14.22±0.60(Predicted)
Safety Information
MSDS Information
Entecavir Impurity Usage And Synthesis
Uses(1R,3S,4S)-Entecavir is an impurity of Entecavir (E558900).
DefinitionChEBI: Entecavir (anhydrous) is guanine substituted at the 9 position by a 4-hydroxy-3-(hydroxymethyl)-2-methylidenecyclopentyl group. A synthetic analogue of 2'-deoxyguanosine, it is a nucleoside reverse transcriptase inhibitor with selective antiviral activity against hepatitis B virus. Entecavir is phosphorylated intracellularly to the active triphosphate form, which competes with deoxyguanosine triphosphate, the natural substrate of hepatitis B virus reverse transcriptase, inhibiting every stage of the enzyme's activity, although it has no activity against HIV. It is used for the treatment of chronic hepatitis B. It has a role as an EC 2.7.7.49 (RNA-directed DNA polymerase) inhibitor and an antiviral drug. It is a member of 2-aminopurines, an oxopurine, a primary alcohol and a secondary alcohol.
Entecavir Impurity Preparation Products And Raw materials
6-(Benzyloxy)-9-((1S,3R,3S)-4-(benzyloxy)-3-(benzyloxymethyl)-2-methylenecyclopentyl)-N-((4-methoxyphenyl)diphenylmethyl)-9H-purin-2-amine 2-AMino-1,9-dihydro-9-[(1S,3R,4S)-4-(hydroxydiMethylsilyl)-3-(hydroxyMethyl)-2-Methylenecyclopentyl]-6H-purin-6-one Entecavir Impurity 17(Entecavir EP Impurity C) Entecavir 2-Amino-1,9-dihydro-9-[(1S,3R,4S)-4-(benzyloxy)-3-(benzyloxymethyl)-2-methylenecyclopentyl]-6H-purin-6-one (1'S,3'S,4'S)-Entecavir IsoMer (1R,3R,4R)-Entecavir (1S,2S,3S,5S)-5-(2-Amino-6-(benzyloxy)-9H-purin-9-yl)-3-(benzyloxy)-2-(benzyloxymethyl)cyclopentanol (2R,3S,5S)-3-(Benzyloxy)-5-[2-[[(4-methoxyphenyl)diphenylmethyl]amino]-6-(phenylmethoxy)-9H-purin-9-yl]-2-(benzyloxymethyl)cyclopentanol (1S,3S,4R)-Entecavir 142217-78-5 2-amino-9-((1S,3S,4S)-4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl)-1,9-dihydro-6H-purin-6-one 6-O-Benzyl-4-dehydroxy-4-diMethylphenylsilyl Entecavir 2-amino-9-((1R,3R,4S)-4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl)-1,9-dihydro-6H-purin-6-one hydrate (2R,3S,5S)-3-(Benzyloxy)-5-[2-[[(4-methoxyphenyl)diphenylmethyl]amino]-6-(benzyloxy)-9H-purin-9-yl]-2-(benzyloxymethyl)cyclopentanone Entecavir Impurity 5 (1S, 2R)-2-(Benzyloxymethyl)-1-hydroxy-3-cyclopentene 6H-Purin-6-one, 2-amino-1,9-dihydro-9-[(1R,3S,4R)-4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl]-
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