Sodium Hydroxide → 2-[4-(4-Chlorobenzoyl)benzyl]thio-7H-pyrrolo[2,3-d]pyrimidin-4(3H)-one

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Reaction Steps

In DMF (20 ml) was dissolved 2-mercapto-7H-pyrrolo[2,3-d]pyrimidin-4(3H)-one (836 ml) followed by addition of 1N-sodium hydroxide (5 ml). Then, under ice-cooling, a solution of 4-(4-chlorobenzoyl)benzyl bromide (1.63 g) in DMF (5 ml) was added dropwise. The mixture was stirred at room temperature for 4 hours, at the end of which time it was poured in ice-water (200 ml). The resulting precipitate was collected by filtration, rinsed with water, and dried. This precipitate was purified by flash column chromatography (3-5% ethanol-containing chloroform) to provide the title compound (1.33 g). 1H-NMR (DMSO-d6) δ: 4.52(2H,s), 6.34-6.37(1H,m), 6.91-6.95(1H,m), 7.61(2H,d,J=8.4Hz), 7.65(2H,d,J=8.4Hz), 7.70(2H,d,J=8.4Hz), 7.74(2H,d,J=8.4Hz), 11.42(1H,s), 11.95(1H,s).

Provenance & Evidence