Azetidine → (R)-tert-butyl 1-(3-(azetidine-1-carboxamido)-5-bromo-1H-pyrrolo[2,3-b]pyridin-4-yl)piperidin-3-ylcarbamate

Di(1H-imidazol-1-yl)methanone (3.2 g, 19 mmol) was added to (R)-tert-butyl 1-(3-amino-5-bromo-1H-pyrrolo[2,3-b]pyridin-4-yl)piperidin-3-ylcarbamate (2.0 g, 4.9 mmol; Example 98, Step A) in THF (100 mL), and the reaction mixture was stirred at room temperature for 18 hours. The reaction solution was used as is. Azetidine (113 mg, 1.98 mmol) was added to (R)-tert-butyl 1-(5-bromo-3-(1H-imidazole-1-carboxamido)-1H-pyrrolo [2,3-b]pyridin-4-yl)piperidin-3-ylcarbamate (200 mg, 0.397 mmol) in THF (20 mL), and the reaction was stirred for 18 hours. The reaction was concentrated to dryness and then purified by reverse phase chromatography (SP4, 25M, water/ACN 90/10->0/100, 30 CV) to yield (R)-tert-butyl 1-(3-(azetidine-1-carboxamido)-5-bromo-1H-pyrrolo[2,3-b]pyridin-4-yl)piperidin-3-ylcarbamate (90 mg, 46.0% yield) as a solid.

1. stirringthe reaction was stirred for 18 hours
2. concentrationThe reaction was concentrated to dryness
3. custompurified by reverse phase chromatography (SP4, 25M, water/ACN 90/10->0/100, 30 CV)

ORDレコード

ord-d91a39833e5540e1bb2314e03bb1a836

出典データセット

uspto-grants-2012_05

DOI

10.6084/m9.figshare.5104873.v1

特許番号

US08178131B2