Diisopropylethylamine → n-{3-[4-(3,4-Dichlorophenoxy)-1-piperidinyl]propyl}-1-methyl-1h-pyrazolo[3,4-d]pyrimidin-4-amine

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Reaction Steps

The product from step (ii) (0.08 g), 4-chloro-1-methyl-1H-pyrazolo[3,4-d]pyrimidine (0.054 g) and diisopropylethylamine (0.082 g) in 1-methyl-2-pyrrolidinone (2 ml) was heated at 50° C. for 3 h. The reaction mixture was diluted with ethyl acetate and washed with water. The organic layer was dried and the solvent removed under reduced pressure. Purification was by chromatography eluting with 9% methanol/dichloromethane. Yield 0.052 g

Provenance & Evidence