Ethylenediamine → 2-[(6S)-6-(3,5-Difluorophenyl)-3,3-dimethyl-2-oxopiperidin-1-yl]-N-methyl-N-[(2R)-2'-oxo-1,1',2',3-tetrahydrospiro[indene-2,3'-pyrrolo[2,3-b]pyridin]-5-yl]acetamide

To a solution of 2-[(6S)-6-(3,5-difluorophenyl)-3,3-dimethyl-2-oxopiperidin-1-yl]-N-methyl-N4(2R)-2′-oxo-1′-{[2-(trimethylsilyl)ethoxy]methyl}-1,1′,2′,3-tetrahydrospiro[indene-2,3′-pyrrolo[2,3-b]pyridin]-5-yl]acetamide from Step B (38 mg, 0.057 mmol) in CH2Cl2 (2 mL) was added TFA (1 mL) and the resulting mixture was stirred at ambient temperature for 1 h then concentrated to dryness in vacuo. The residue was dissolved in MeOH (1 mL) and the solution was adjusted to pH 10 by addition of 1 N aqueous NaOH and ethylenediamine (5.7 mg, 0.095 mmol). After 30 min, the mixture was partitioned between H2O (30 mL) and EtOAc (40 mL). The organic layer was washed with brine, dried over Na2SO4, filtered, and concentrated in vacuo. The crude product was purified by silica gel chromatography, eluting with a gradient of CH2Cl2:CH3OH—100:0 to 95:5, to give the title compound. MS: m/z=545 (M+1). HRMS: m/z=545.2388; calculated m/z=545.2359 for C31H31F2N4O3.

1. concentrationthen concentrated to dryness in vacuo
2. dissolutionThe residue was dissolved in MeOH (1 mL)
3. waitAfter 30 min
4. customthe mixture was partitioned between H2O (30 mL) and EtOAc (40 mL)
5. washThe organic layer was washed with brine
6. dry with materialdried over Na2SO4
7. filtrationfiltered
8. concentrationconcentrated in vacuo
9. customThe crude product was purified by silica gel chromatography
10. washeluting with a gradient of CH2Cl2

ORD 기록

ord-8fba8ff8737649b9b8b6ac9c277ea14c

출처 데이터셋

uspto-grants-2011_02

DOI

10.6084/m9.figshare.5104873.v1

특허 번호

US07893079B2