Methyl 2-(bromomethyl)-4-methoxybenzoate → HCID 68509225, compound

Reaction equation

CO[C:3](=[O:14])[C:4]1[CH:9]=[CH:8][C:7]([O:10][CH3:11])=[CH:6][C:5]=1[CH2:12]Br.[C:15]([O:19][C:20]([N:22]1[CH2:27][CH2:26][CH:25]([NH2:28])[CH2:24][CH2:23]1)=[O:21])([CH3:18])([CH3:17])[CH3:16]>CO.C(N(CC)CC)C>[C:15]([O:19][C:20]([N:22]1[CH2:27][CH2:26][CH:25]([N:28]2[CH2:12][C:5]3[C:4](=[CH:9][CH:8]=[C:7]([O:10][CH3:11])[CH:6]=3)[C:3]2=[O:14])[CH2:24][CH2:23]1)=[O:21])([CH3:18])([CH3:16])[CH3:17]

Participants

Procedure

To a solution of 2-bromomethyl-4-methoxy-benzoic acid methyl ester (1.28 g, 4.94 mmol, 1.0 equiv) in methanol (9 mL) and triethylamine (0.83 mL) was added 4-amino-piperidine-1-carboxylic acid tert-butyl ester (1.04 g, 5.19 mmol, 1.05 equiv; commercially available) and the reaction stirred at rt overnight. The reaction mixture was poured on crashed ice/diluted HCl, extracted with ethyl acetate, the combined organic phases washed with a sat. solution of NaHCO3 and water, dried over Na2SO4 and concentrated by evaporation under reduced pressure. The crude material was purified with silica column chromatography eluting with hexane/ethyl acetate (3:7) yielding 0.84 g (49%) of the title compound as white crystals. MS (ISP): 347.3 [M+H]+.