How is Desacetyl Famciclovir (CAS: 104227-88-5) typically synthesized?

Desacetyl Famciclovir is synthesized by the acetylation of famciclovir followed by deacetylation at a specific position. The synthesis typically involves the use of acetic anhydride and a catalyst such as pyridine. The final step involves hydrolysis to remove the acetyl group, yielding Desacetyl Famciclovir with a high yield and good selectivity. This process is carried out under an inert atmosphere to avoid decomposition.