1-[2-(4-Aminopiperidin-1-yl)ethyl]-2-oxo-1,2-dihydroquinoline-7-carbonitrile → 4-[2-(4-Aminopiperidin-1-yl)ethyl]-6-bromo-2H-pyrido[3,2-b][1,4]oxazin-3(4H)-one
Reaction equation
C(OC(=O)[NH:7][CH:8]1[CH2:13][CH2:12][N:11]([CH2:14][CH2:15][N:16]2[C:21](=[O:22])[CH2:20][O:19][C:18]3[CH:23]=[CH:24][C:25]([Br:27])=[N:26][C:17]2=3)[CH2:10][CH2:9]1)(C)(C)C.NC1CCN(CCN2C3C(=CC=C(C#N)C=3)C=CC2=O)CC1>>[NH2:7][CH:8]1[CH2:13][CH2:12][N:11]([CH2:14][CH2:15][N:16]2[C:21](=[O:22])[CH2:20][O:19][C:18]3[CH:23]=[CH:24][C:25]([Br:27])=[N:26][C:17]2=3)[CH2:10][CH2:9]1Participants
3
Reactant 2
Product 1
Procedure
tert-Butyl{1-[2-(6-bromo-3-oxo-2,3-dihydro-4H-pyrido[3,2-b][1,4]oxazin-4-yl)ethyl]piperidin-4-yl}carbamate (Intermediate 80) 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).