Diisopropylethylamine → (5S)-5-[(2-Chloro-6,7-dihydrothieno[3,2-d]pyrimidin-4-yl)amino]-1-methyl-2-piperidinone

Participants

Reaction Conditions

Reaction Steps

0.27 g (II) are placed in 3 ml dioxane, then 0.45 ml diisopropylethylamine and 0.25 g (S)-5-amino-1-methylpiperidin-2-one are added. The reaction mixture is heated to 130° C. until there is no further reaction, cooled and then evaporated down. The product is extracted with dichloromethane and purified by chromatography (preparative HPLC, method B). 0.26 g (III-5) are obtained as a solid. Analytical HPLC-MS (method A): RT=1.06 min.

Provenance & Evidence