1-[2-(4-Aminopiperidin-1-yl)ethyl]-2-oxo-1,2-dihydroquinoline-7-carbonitrile → Methyl 4-[2-(4-aminopiperidin-1-yl)ethyl]-3-oxo-3,4-dihydro-2H-1,4-benzoxazine-6-carboxylate

Participants

Reaction Steps

Methyl 4-(2-{4-[(tert-butoxycarbonyl)amino]piperidin-1-yl}ethyl)-3-oxo-3,4-dihydro-2H-1,4-benzoxazine-6-carboxylate (Intermediate 85) was reacted as described for Intermediate 14. The crude trifluoro acetate of the title compound was used without further purification for the next step (quantitative yield).

Provenance & Evidence