Diisopropylethylamine → 1-[(2'-Oxo-1',2',5,7-tetrahydro-1H-spiro[indeno[5,6-d]imidazole-6,3'-pyrrolo[2,3-b]pyridin]-2-yl)methyl]-4H-imidazo[1,5,4-de]quinoxaline-2,5(1H,6H)-dione

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Reaktionsschritte

A mixture of 5,6-diamino-1,3-dihydrospiro[indene-2,3′-pyrrolo[2,3-b]pyridin]-2′(1′H)-one (30 mg, 0.11 mmol, described in Intermediate 13), sodium (2,5-dioxo-5,6-dihydro-4H-imidazo[1,5,4-de]quinoxalin-1(2H)-yl)acetate (27 mg, 0.10 mmol, described in Intermediate 26), BOP (50 mg, 0.11 mmol), and N,N-diisopropylethylamine (0.019 mL, 0.11 mmol) was stirred in DMF (0.4 mL) at ambient temperature for 2 h, then AcOH (0.4 mL) was added and the resulting mixture was heated to 60° C. for 18 h. The mixture was allowed to cool and the precipitate was isolated by filtration. This solid was washed with H2O, then MeOH, then CH2Cl2, then dried in vacuo to give the title compound. MS: m/z=478 (M+1). HRMS: m/z=478.1606; calculated m/z=478.1622 for C26H20N7O3.

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