2-amino-9-[(1S,3R)-4-hydroxy-3-(hydroxymethyl)-2-methylidenecyclopentyl]-6,9-dihydro-1H-purin-6-one

• ChemBase ID: 168006
• Molecular Formular: C12H15N5O3
• Molecular Mass: 277.2792
• Monoisotopic Mass: 277.11748937
• SMILES: C1C([C@H](C(=C)[C@H]1n1c2c(nc1)c(=O)[nH]c(n2)N)CO)O
• Canonical SMILES: OC[C@@H]1C(O)C[C@@H](C1=C)n1cnc2c1nc(N)[nH]c2=O
• InChI: InChI=1S/C12H15N5O3/c1-5-6(3-18)8(19)2-7(5)17-4-14-9-10(17)15-12(13)16-11(9)20/h4,6-8,18-19H,1-3H2,(H3,13,15,16,20)/t6-,7-,8?/m0/s1
• InChIKey: QDGZDCVAUDNJFG-WPZUCAASSA-N

NAMES AND DATABASE IDS

Names

• IUPAC name: 2-amino-9-[(1S,3R)-4-hydroxy-3-(hydroxymethyl)-2-methylidenecyclopentyl]-6,9-dihydro-1H-purin-6-one
• IUPAC Traditional name: 2-amino-9-[(1S,3R)-4-hydroxy-3-(hydroxymethyl)-2-methylidenecyclopentyl]-1H-purin-6-one
• Synonyms: 2-Amino-1,9-dihydro-9-[(1S,3R,4S)-4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl]-6H-Purin-6-one; Baraclude; BMS 200475; SQ 34676; Entecavir; 2-Amino-1,9-dihydro-9-[(1S,3R,4R)-4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl]-6H-purin-6-one; Entecavir Isomer 2; (1’S,3’S,4’S)-Entecavir Isomer; 4'-epi-Entecavir

Database IDs

• CAS Number: 142217-69-4
• PubChem SID: 162262138
• PubChem CID: 71316332

CALCULATED PROPERTIES

• Acid pKa: 10.16698
• H Acceptors: 6
• H Donor: 4
• LogD (pH = 5.5): -1.9623985
• LogD (pH = 7.4): -1.9629238
• Log P: -1.96227
• Molar Refractivity: 71.4342 cm^3
• Polarizability: 26.239368 Å^3
• Polar Surface Area: 125.76 Å^2
• Rotatable Bonds: 2
• Lipinski's Rule of Five: true

PROPERTIES

Physical Property

• Solubility: DMSO; Methanol
• Apperance: White to Off-White Solid
• Melting Point: 249-252°C

Safety Information

• Storage Condition: -20°C Freezer

DETAILS

Toronto Research Chemicals - E558900

An oral antiviral drug used in the treatment of hepatitis B infection. A guanine analogue that inhhibits all three steps in the viral replication process.

Toronto Research Chemicals - E558930

4’-epi-Entecavir is an epimeric impurity of the antiviral drug Entecavir (E558900).

REFERENCES

• Innaimo, S.F., et al.: Antimicrob. Agents Chemother., 41, 1444 (1997)
• Honkoop, P., et al.: Expert Opin. Invest. Drugs, 12, 683 (1997)
• Chang, T.-T., et al.: N. Engl. J. Med., 354, 1001 (1997)