Sodium cyanoborohydride → 3-Oxo-4-[2-(4-{[(3-oxo-3,4-dihydro-2H-pyrido[3,2-b][1,4]oxazin-6-yl)methyl]amino}piperidin-1-yl)ethyl]-3,4-dihydro-2H-1,4-benzoxazine-6-carbonitrile

Participants

Reaction Steps

4-[2-(4-aminopiperidin-1-yl)ethyl]-3-oxo-3,4-dihydro-2H-1,4-benzoxazine-6-carbonitrile (Intermediate 58) (0.8 mmol), 3-oxo-3,4-dihydro-2H-pyrido[3,2-b][1,4]oxazine-6-carbaldehyde (WO 2004/058144) (140 mg, 0.79 mmol) and sodium cyanoborohydride (83 mg, 1.32 mmol) were reacted as described under Example 21 to give 60 mg (19%) product as a solid.

Provenance & Evidence