Toluene → 1-[(5-Chloro-pyridin-2-ylcarbamoyl)-methyl]-5-[2-(2-methoxy-ethoxy)-ethoxymethyl]-1H-pyrazole-3-carboxylic acid

Participants

Reaction Steps

To a solution of 400 mg 1-[(5-Chloro-pyridin-2-ylcarbamoyl)-methyl]-5-[2-(2-methoxy-ethoxy)-ethoxymethyl]-1H-pyrazole-3-carboxylic acid tert-butyl ester in 5 ml DCM, 15 ml TFA were added at RT. After 3 h 30 ml toluene were added and the solvents were removed under reduced pressure. The residue was then three times codistillied with toluene and subjected to the next reaction step without further purification.

Provenance & Evidence