HCID 131734046, compound → HCID 118159130, compound

Participants

Reaction Steps

A solution of (S)-6-benzyl-2-(4-(2,4-difluorophenoxyl)piperidin-1-yl)-N-(1-methoxypropan-2-yl)-5,6,7,8-tetrahydropyrido[3,4-b]pyrazin-3-amine TFA salt (127.7 mg, 0.200 mmol) in THF (2.00 mL) at room temperature was treated with Pd(OH)2 (20 wt %, 42.2 mg, 0.060 mmol). Hydrogen gas (balloon) was bubbled through the reaction mixture for 5 min. The vent needle was removed and the reaction mixture was stirred under hydrogen atmosphere for 1 h. The reaction mixture was opened to air and was filtered through a pad of Celite™, eluting with EtOAc and MeOH. The filtrate was concentrated under reduced pressure to give (S)-2-(4-(2,4-difluorophenoxyl)piperidin-1-yl)-N-(1-methoxypropan-2-yl)-5,6,7,8-tetrahydropyrido[3,4-b]pyrazin-3-amine, as a TFA salt, as a yellow oil, which was carried forward without additional purification. ESI-MS m/z [M+H]+434.5.

Provenance & Evidence