Lithium Hydroxide → tert-butyl 4-(4-(3-(1-(3-fluorobenzyl)-5-methyl-1H-pyrazol-4-yl)-1H-pyrrolo[2,3-b]pyridin-5-yl)phenyl)piperazine-1-carboxylate

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Reaction Steps

Using similar reaction conditions as described in step-iii of example-1, tert-butyl 4-(4-(3-(1-(3-fluorobenzyl)-5-methyl-1H-pyrazol-4-yl)-1-tosyl-1H-pyrrolo[2,3-b]pyridin-5-yl)phenyl)piperazine-1-carboxylate (250 mg, 0.346 mmol) was hydrolyzed by lithium hydroxide (72.8 mg, 1.734 mmol), THF/Methanol/water (2/3/1 ml) to yield 100 mg (52% yield) of the titled compound. 1H NMR (CDCl3, 400 MHz): δ 9.28 (S, 1H), 8.54 (s, 1H), 8.01 (s, 1H), 7.59-7.52 (m, 3H), 7.34-7.27 (m, 2H), 7.05-6.94 (m, 4H), 5.32 (s, 2H), 3.61-3.60 (m, 4H), 3.19 (s, 4H), 2.40 (s, 3H), 1.49 (s, 9H). MS: m/z=657.2 (M+1).

Provenance & Evidence