Piperidine → Tert-butyl 2-(2-(methoxymethoxy)-5-((piperidin-1-yl)methyl)benzamido)-4-phenylbenzoate
Reaction equation
[NH:1]1[CH2:6][CH2:5][CH2:4][CH2:3][CH2:2]1.Br[CH2:8][C:9]1[CH:10]=[CH:11][C:12]([O:37][CH2:38][O:39][CH3:40])=[C:13]([CH:36]=1)[C:14]([NH:16][C:17]1[CH:29]=[C:28]([C:30]2[CH:35]=[CH:34][CH:33]=[CH:32][CH:31]=2)[CH:27]=[CH:26][C:18]=1[C:19]([O:21][C:22]([CH3:25])([CH3:24])[CH3:23])=[O:20])=[O:15]>CC(C)=O>[CH3:40][O:39][CH2:38][O:37][C:12]1[CH:11]=[CH:10][C:9]([CH2:8][N:1]2[CH2:6][CH2:5][CH2:4][CH2:3][CH2:2]2)=[CH:36][C:13]=1[C:14]([NH:16][C:17]1[CH:29]=[C:28]([C:30]2[CH:31]=[CH:32][CH:33]=[CH:34][CH:35]=2)[CH:27]=[CH:26][C:18]=1[C:19]([O:21][C:22]([CH3:25])([CH3:24])[CH3:23])=[O:20])=[O:15]Participants
4
Procedure
Under ice-cooling, piperidine (0.094 mL) was added to an acetone (1.5 mL) suspension of tert-butyl 2-(5-(bromomethyl)-2-(methoxymethoxy)benzamido)-4-phenylbenzoate (0.10 g), followed by stirring at room temperature for 1 hour. The solvent was evaporated under reduced pressure, and a saturated aqueous solution of sodium bicarbonate and ethyl acetate were added to the residue. The organic layer was separated, washed with a saturated aqueous solution of sodium chloride, and dried over anhydrous magnesium sulfate, and the solvent was evaporated under reduced pressure. The obtained residue was purified by silica gel column chromatography [Kanto Chemical Co., Inc., silica gel 60 (spherical), eluent: 100-95% chloroform/methanol] to obtain 0.080 g of tert-butyl 2-(2-(methoxymethoxy)-5-((piperidin-1-yl)methyl)benzamido)-4-phenylbenzoate.