Lithium Hydroxide → HCID 58072960, compound

Participants

Reaction Conditions

Reaction Steps

The title compound is synthesized according to general procedure GP8 starting from 13.8 g (36.4 mmol) 4-[5-(6-amino-pyridin-3-ylethynyl)-6-methyl-pyrimidin-4-yl]-2-chloro-benzoic acid methyl ester using 7.64 g (182 mmol.) LiOH in 200 mL water and 400 mL THF. The reaction mixture is stirred over night at 50° C. The solvent is removed under reduced pressure and the residue is taken up in water. Aqueous 1 M HCl is added until pH 5-6 is reached. The precipitated product is filtered off and washed with water and MeOH. After drying 12.1 g of the desired product is obtained, which is used for the next step without further purification.

Provenance & Evidence