2-[(2S)-1-Hydroxy-4-methylpentan-2-yl]-1H-isoindole-1,3(2H)-dione → (S)-2-(1-((4,6-dimethyl-5-oxo 5,6-dihydrobenzo[c][2,7]naphthyridin-8-yl)oxy)-4-methylpentan-2-yl)isoindoline-1,3-dione

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Reaction Steps

8-Chloro-4,6-dimethylbenzo[c][2,7]naphthyridin-5(6H)-one (1.4 g, 5.41 mmol) and (S)-2-(1-hydroxy-4-methylpentan-2-yl)isoindoline-1,3-dione (4.01 g, 16.23 mmol) were subjected to Buchwald coupling as described in Example 16, Part H) to give (S)-2-(1-((4,6-dimethyl-5-oxo 5,6-dihydrobenzo[c][2,7]naphthyridin-8-yl)oxy)-4-methylpentan-2-yl)isoindoline-1,3-dione as yellow solid (1.4 g, 2.62 mmol, 49% yield). LC/MS (ESI) m/e 470.2 [(M+H)+, calcd for C28H28N3O4 470.2]; LC/MS retention time (method C): tR=2.05 min.

Provenance & Evidence