HRID250992

反应详情

EQUATION

反应方程式

HRID 250992 的结构方程式

AUXILIARIES

试剂、催化剂与溶剂

1

PROCEDURE

实验过程

Using General Procedure A: A solution of {4-[(3-methyl-pyridin-2-ylmethyl)-amino]-butyl}-carbamic acid tert-butyl ester (0.605 g, 2.06 mmol), 1-(tert-butoxycarbonyl)-2-(chloromethyl)-benzimidazole (0.804 g, 3.01 mmol), KI (72 mg, 0.43 mmol) and DIPEA (0.70 mL, 4.02 mmol) in CH3CN (10 mL) was heated at 80° C. for 6 hours. Purification of the crude material by column chromatography on silica gel (15:1 CH2Cl2-MeOH) followed by column chromatography on silica gel (NH4OH saturated Et2O) provided 0.82 g (76%) of 2-{[(4-tert-Butoxycarbonylamino-butyl)-(3-methyl-pyridin-2-ylmethyl)-amino]-methyl}-benzoimidazole-1-carboxylic acid tert-butyl ester as a white foam.

WORKUP

后处理

  1. customPurification of the crude material by column chromatography on silica gel (15:1 CH2Cl2-MeOH)