HRID588143

反应详情

EQUATION

反应方程式

HRID 588143 的结构方程式

AUXILIARIES

试剂、催化剂与溶剂

3

CONDITIONS

反应条件

温度
100 °C

PROCEDURE

实验过程

N′-acetyl-6-chloro-3-methoxy-1-trityl-1H-pyrazolo[4,3-c]pyridine-4-carbohydrazide (48 mg, 0.091 mmol, see synthesis of intermediate 43B) was taken up in 1,4-dioxane (1.0 ml) and Lawesson's Reagent (27.7 mg, 0.068 mmol) was added. The reaction mixture was stirred at 100° C. for 1 hr. Room temperature was attained. The reaction mixture was diluted with DCM and MeOH and was concentrated in vacuo while loading onto silica gel. The products were purified by MPLC 5-30% EtOAc/hexanes to give 2-(6-chloro-3-methoxy-1-trityl-1H-pyrazolo[4,3-c]pyridin-4-yl)-5-methyl-1,3,4-thiadiazole (44B). MS: [M+H]+ m/z 524.

WORKUP

后处理

  1. customRoom temperature
  2. concentrationwas concentrated in vacuo
  3. customThe products were purified by MPLC 5-30% EtOAc/hexanes