*The following content is generated by AI and is for reference only.
<h3>Overview</h3>
<p>Entecavir is a <strong>nucleoside analogue</strong> antiviral agent primarily synthesized via chiral catalytic hydrogenation and glycosylation. Its molecular formula is C<sub>8</sub>H<sub>11</sub>N<sub>5</sub>O<sub>3</sub>, with CAS No. 142217-69-0.</p>
<h3>Application</h3>
<ul>
<li><strong>Pharmaceutical Manufacturing:</strong> Production of tablets for chronic hepatitis B virus (HBV) treatment.</li>
<li><strong>Clinical Therapy:</strong> First-line therapy for patients with compensated liver disease or lamivudine-resistant strains.</li>
<li><strong>Research & Development:</strong> Active pharmaceutical ingredient (API) for clinical trials on viral replication inhibition.</li>
</ul>
<h3>Precautions</h3>
<p>Contraindicated in patients with renal impairment without dosage adjustment. Requires storage below 25°C in moisture-proof containers to maintain stability. Strict adherence to GMP guidelines is mandatory during synthesis.</p>