反应详情

To a solution of methyl (2S,3S,5S)-1-methyl-2-[(4-phenyl-3,6-dihydropyridin-1(2H)-yl)carbonyl]-5-(pyridin-4-yloxy)piperidine-3-carboxylate (70 mg, 0.0002 mol) in methanol (0.6674 mL, 0.01648 mol) was added 1.640 M of N-hydroxyamine in Methanol (2.01 mL) made from the corresponding HCl salt and sodium methoxide. After stirred at rt for 1 h, the mixture was acidified with 1N HCl. The resultant mixture was applied directly on RP-HPLC to afford the product as a TFA salt (56 mg, 63.4%). MS (ESI): (M+H)+=437.1.