Dichloromethane → 4-(piperidin-4-yl)-3,4-dihydropyrrolo[4,3,2-de][2,6]naphthyridin-5(1H)-one

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Reaction Steps

tert-Butyl 4-(5-oxopyrrolo[4,3,2-de][2,6]naphthyridin-4(1H,3H,5H)-yl)piperidine-1-carboxylate (18 mg, 0.051 mmol) was dissolved in TFA (1 mL) and DCM (2 mL) and allowed to stir at room temperature for 15 min. The mixture was concentrated in vacuo and purified via preparative HPLC 10% to 40% B in A and gave 12 mg of the title compound as its TFA salt. 1H NMR (400 MHz, CD3OD) δ 8.71-8.72 (s, 1H), 8.42 (d, 1H, J=8.4 Hz), 7.62 (s, 1H), 7.48-7.49 (m, 2H), 5.02 (s, 1H), 4.69-4.75 (m, 2H), 3.58-3.61 (m, 2H), 3.19-3.26 (m, 2H), 2.33-2.39 (m, 2H), 2.10-2.15 (m, 2H). [M+H] found 257.

Provenance & Evidence