Diisopropylethylamine → HCID 67538057, compound

Participants

Reaction Steps

A solution of 4-chloro-5,7-dihydropyrrolo[2,3-d]pyrimidin-6-one (prepared according to the literature: Li Sun et al. Bioorg. and Med. Chem. Lett. 2002, 12, 2153-2157; 690 mg, 3.7 mmol), Boc-piperazine (630 mg, 3.7 mmol), and DIEA (0.96 mL, 5.5 mmol) in 20 mL IPA was heated to reflux and stirred 14 hours, after which the reaction mixture was concentrated. The crude was purified on silica gel (1:2 DCM:EtOAc to 1:4 DCM:EtOAc gradient) to give 4-Boc-piperazin-1-yl-5,7-dihydropyrrolo[2,3-d]pyrimidin-6-one, which was used in the next step.

Provenance & Evidence