HRID870872

反应详情

EQUATION

反应方程式

HRID 870872 的结构方程式

AUXILIARIES

试剂、催化剂与溶剂

1

CONDITIONS

反应条件

温度
45 °C

PROCEDURE

实验过程

A mixture of (2S,5R)-tert-butyl 5-(N-(benzyloxy)-2-nitrophenylsulfonamido)-2-carbamothioylpiperidine-1-carboxylate (1.65 g, 3 mmol) and 1,1-dimethoxy-N,N-dimethylmethanamine (1.08 g, 9.0 mmol) in dry dioxane (20 mL) was stirred at 45° C. overnight. The reaction mixture was concentrated under vacuum and the residue was purified by silica gel column chromatography (1:1 petroleum ether/EtOAc) to give (2S,5R)-tert-butyl 5-(N-(benzyloxy)-2-nitrophenylsulfonamido)-2-((E)-(dimethylamino)methylenecarbamothioyl)piperidine-1-carboxylate (1.3 g, 72%) as a yellow solid. ESI-MS (EI+, m/z): 606 [M+H]+.

WORKUP

后处理

  1. concentrationThe reaction mixture was concentrated under vacuum
  2. customthe residue was purified by silica gel column chromatography (1:1 petroleum ether/EtOAc)