HRID1867953

反应详情

EQUATION

反应方程式

HRID 1867953 的结构方程式

AUXILIARIES

试剂、催化剂与溶剂

2

PROCEDURE

实验过程

A solution of piperidine-1,4-dicarboxylic acid mono-tert-butyl ester (276 mg, 1.203 mmol), of HATU (549 mg, 1.444 mmol) and of diisopropylethylamine (187 mg, 1.44 mmol) in 3 ml of DMF is stirred at room temperature for 15 minutes. The 2-aminobenzothiazol-6-ol (intermediate 1) (200 mg, 1.203 mmol) dissolved in 3 ml of DMF is added in a single portion. The reaction medium is stirred at room temperature for 2 hours, poured into a 10% solution of Na2CO3 in water (20 ml) and extracted with ethyl acetate. The crude reaction product is purified by column chromatography (eluent: EtOAc/heptane (1/1)) to give 401 mg of 4-(6-hydroxybenzothiazol-2-ylcarbamoyl)-piperidine-1-carboxylic acid tert-butyl ester (white solid).

WORKUP

后处理

  1. additionis added in a single portion
  2. extractionextracted with ethyl acetate
  3. customThe crude reaction product
  4. customis purified by column chromatography (eluent: EtOAc/heptane (1/1))