API reference

Entecavir

CAS number
142217-69-4
Molecular formula
C12H15N5O3
Molecular weight
277.28 g/mol
Entecavir — 2D structure
2D structure (PubChem)

About this molecule

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 antiviral drug and an EC 2.7.7.49 (RNA-directed DNA polymerase) inhibitor. It is a primary alcohol, a member of 2-aminopurines, an oxopurine and a secondary alcohol.

Source: ChEBI, via PubChem.

Identifiers

IUPAC name
2-amino-9-[(1S,3R,4S)-4-hydroxy-3-(hydroxymethyl)-2-methylidenecyclopentyl]-1H-purin-6-one
InChIKey
QDGZDCVAUDNJFG-FXQIFTODSA-N
SMILES
C=C1[C@H](C[C@@H]([C@H]1CO)O)N2C=NC3=C2N=C(NC3=O)N
Other CAS numbers recorded
1333204-94-6
PubChem CID
135398508

Also known as

Entecavir · Baraclude · anhydrous entecavir · Entecavir anhydrous · entecavir (anhydrous) · Entecavirum · J05AF10 · 604-279-5

Related entries in the range

Chemical data on this page is drawn from PubChem (National Library of Medicine) and is provided for identification only. Hanpars does not hold stock of every substance listed; availability, grade, documentation and regulatory status are confirmed per enquiry.

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