[NH2:1][C:2]1[CH:11]=[C:10]2[C:5]([C:6]([CH3:20])([CH3:19])[CH2:7][CH2:8][N:9]2[C:12](OC(C)(C)C)=O)=[CH:4][CH:3]=1.[H-].[H-].[H-].[H-].[Li+].[Al+3]>C1COCC1>[CH3:12][N:9]1[C:10]2[C:5](=[CH:4][CH:3]=[C:2]([NH2:1])[CH:11]=2)[C:6]([CH3:20])([CH3:19])[CH2:7][CH2:8]1To a solution of tert-butyl 7-amino-4,4-dimethyl-2,3-dihydroquinoline-1-carboxylate (100 mg, 0.36 mmol) in THF (2.2 mL) under an inert atmosphere was added LiAlH4 (1.8 mL of 1 M, 1.8 mmol) dropwise. The reaction mixture was heated to reflux and stirred for 4 h. The reaction was cooled to room temperature and quenched with of 0.4 M NaOH solution (0.6 mL), the aqueous layer was extracted with DCM, dried over Na2SO4, filtered and concentrated to an orange oil. The residue was purified via reverse phase HPLC. LC/MS: m/z 191.5 (M+H)+ at 0.92 min (10%-99% CH3CN (0.035% TFA)/H2O (0.05% TFA)).
Wird geladen…