Hydrochloric Acid → HCID 178448381, compound

Participants

Reaction Steps

Hydrochloric acid (2.08 g) and 10% palladium on carbon (0.88 g, 50% wet) was added to a solution of mono-benzyloxycarbonyl-L-valine ganciclovir (8 g) in 30% aqueous iso-propanol (Iso-propanol:Water::64 mL:28 mL). The reaction mixture was flushed with nitrogen twice and hydrogenated at 35° C. to 40° C. under hydrogen pressure of 0.5-1 Kg/cm2 for about 1 hour. After completion of the reaction, the reaction mass was filtered and washed with 20% aqueous iso-propanol (Iso-propanol:Water::6.4 mL:1.6 mL). Iso-propanol (123.3 mL) was added at about 20° C. to 25° C. in about 1 hour. The reaction mass was cooled to about 10° C. to 15° C. and maintained for about 1 hour, filtered, washed with 10% aqueous iso-propanol solution (10 mL) followed by washing with iso-propanol (10 mL) and dried to obtain valganciclovir hydrochloride (4.8 g).

Provenance & Evidence