API reference
Entecavir
- CAS number
- 142217-69-4
- Molecular formula
- C12H15N5O3
- Molecular weight
- 277.28 g/mol

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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