Water → methyl 2-(1-methyl-5-(4-methyl-4-nitropentyloxy)-1H-indazol-3-yl)-5-trityl-5H-pyrrolo[3,2-b]pyrazine-7-carboxylate

온도

100 °C

To a solution of methyl 2-(5-hydroxy-1-methyl-1H-indazol-3-yl)-5-trityl-5H-pyrrolo[3,2-b]pyrazine-7-carboxylate (2.2 g, 3.9 mmol) in DMF (25 mL) was added K2CO3 (1.8 g, 12.8 mmol) and 1-chloro-4-methyl-4-nitropentane (1.0 g, 5.9 mmol), after the addition, the reaction mixture was heated to 100° C. with stirring for 4 hours. The reaction mixture was cooled to room temperature, H2O (25 mL) was added and product extracted with EtOAc (100 mL). The organic layer was washed with H2O (100 mL) and brine (100 mL), dried over Na2SO4 and concentrated under reduced pressure to give methyl 2-(1-methyl-5-(4-methyl-4-nitropentyloxy)-1H-indazol-3-yl)-5-trityl-5H-pyrrolo[3,2-b]pyrazine-7-carboxylate (1.8 g, 66.7%) as yellow solid. LCMS: (M+H)+=695.

1. additionafter the addition
2. temperatureThe reaction mixture was cooled to room temperature
3. extractionproduct extracted with EtOAc (100 mL)
4. washThe organic layer was washed with H2O (100 mL) and brine (100 mL)
5. dry with materialdried over Na2SO4
6. concentrationconcentrated under reduced pressure

ORD 기록

ord-7dfd75488c054b608237d6830793c8dd

출처 데이터셋

uspto-grants-2014_02

DOI

10.6084/m9.figshare.5104873.v1

특허 번호

US08658646B2