反应详情
EQUATION
反应方程式
REACTANTS
反应物
Carbonic acid sodium salt (1:2)
CNa2O3
2-Amino-6-benzothiazolol
C7H6N2OS
2 次
Diisopropylethylamine
C8H19N
1-(tert-Butoxycarbonyl)-4-piperidinecarboxylic acid
C11H19NO4
Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)
C10H15F6N6OP
PRODUCTS
生成物
AUXILIARIES
试剂、催化剂与溶剂
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
- additionis added in a single portion
- extractionextracted with ethyl acetate
- customThe crude reaction product
- customis purified by column chromatography (eluent: EtOAc/heptane (1/1))