N,N-Dimethylglycine → 6-((5-chloropyridin-3-yl)oxy)-1-methyl-3-(3-((tetrahydro-2H-pyran-2-yl)oxy)propyl)pyrido[2,3-d]pyrimidine-2,4(1H,3H)-dione

온도

135 °C

To a mixture of 6-hydroxy-1-methyl-3-(3-((tetrahydro-2H-pyran-2-yl)oxy)propyl)pyrido[2,3-d]pyrimidine-2,4(1H,3H)-dione (See Compound 36, step 2, 500 mg, 1.49 mmol), CuI (85.2 mg, 0.45 mmol), Cs2CO3 (971.6 mg, 2.98 mmol) and 2-(dimethylamino)acetic acid (76.87 mg, 0.75 mmol) in dioxane (20 mL) was added 3-bromo-5-chloropyridine (717.3 mg, 3.73 mmol). The reaction was heated at 135° C. for 5 h followed by heating at 100° C. for 18 h, cooled to RT then diluted with EA (25 mL) and water (10 mL). The organic layer was washed with water (20 mL) and brine (20 mL), dried over Na2SO4 and concentrated to a residue which was purified by chromatography eluted with PE/EA (10:1 to 1:1) to give 6-((5-chloropyridin-3-yl)oxy)-1-methyl-3-(3-((tetrahydro-2H-pyran-2-yl)oxy)propyl)pyrido[2,3-d]pyrimidine-2,4(1H,3H)-dione (525 mg, 78.8% yield) as a yellow oil. LCMS [MH+-THP] 363 and TR=1.403 min.

1. temperatureby heating at 100° C. for 18 h
2. temperaturecooled to RT
3. washThe organic layer was washed with water (20 mL) and brine (20 mL)
4. dry with materialdried over Na2SO4
5. concentrationconcentrated to a residue which
6. customwas purified by chromatography
7. washeluted with PE/EA (10:1 to 1:1)

ORD 기록

ord-2944545b1f1949acb305312f1f68db17

출처 데이터셋

uspto-grants-2016_09

DOI

10.6084/m9.figshare.5104873.v1

특허 번호

US09440972B2