Hydrazine hydrate (1:1) → 5-(2-aminoethyl)-6-chloro-N-[(1S)-2,3-dihydro-1H-inden-1-yl]pyrimidin-4-amine

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Reaction Steps

2-(2-{4-chloro-6-[(1S)-2,3-dihydro-1H-inden-1-ylamino]pyrimidin-5-yl}ethyl)-1H-isoindole-1,3(2H)-dione (3.50 g, 8.32 mmol) was suspended in ethanol (102 mL) and hydrazine hydrate (1.62 mL, 33.3 mmol) was added. The mixture was heated to reflux for 1 hour. At that time, LCMS indicated complete conversion. The mixture was cooled to 23 OC, crystals were filtered off, the residue was evaporated in vacuo and purified using chromatography on silica gel using gradient 0 to 20% MeOH in methylene chloride to afford the title compound (1.20 g, 50%). LC/MS: Rt=1.29 min, ES+ 289 (AA standard).

Provenance & Evidence