(S)-4-(2-amino-5'-fluoro-2'-(2-fluoropyridin-3-yl)-5H-spiro[oxazole-4,9'-xanthene]-7'-yl)-2-methylbut-3-yn-2-ol → (S)-4-(2-amino-5'-fluoro-2'-(2-fluoropyridin-3-yl)-5H-spiro[oxazole-4,9'-xanthene]-7'-yl)-2-methylbutan-2-ol

Participants

Reaction Steps

A 100 ml flask was charged with (S)-4-(2-amino-5′-fluoro-2′-(2-fluoropyridin-3-yl)-5H-spiro[oxazole-4,9′-xanthene]-7′-yl)-2-methylbut-3-yn-2-ol (120 mg, 0.268 mmol) ethanol (4 ml). Palladium on carbon (86 mg, 0.080 mmol) was added under argon and the resulting mixture was hydrogenated under 1 atm of hydrogen gas for 1 hr. The mixture was filtered through celite and concentrated in vacuo to provide (S)-4-(2-amino-5′-fluoro-2′-(2-fluoropyridin-3-yl)-5H-spiro[oxazole-4,9′-xanthene]-7′-yl)-2-methylbutan-2-ol. MS m/z=454.0 [M+H].

Provenance & Evidence