Triethylamine → HCID 22921992, compound

Temperature

-30 °C

To a dichloromethane solution (100 mL) of 2-amino-4-chloro-7H-pyrrolo[2,3-d]pyrimidine (8.7 g, 52 mmol) was added Et3N (26 g, 260 mmol) and the mixture was stirred at −30° C. After this time, TBDMSOTf (15.1 g, 57.2 mmol) was added in a slow dropwise manner and the resultant reaction was stirred at ambient temperature for 1.5 h. The observed solid material completely dissolved to form a light brown solution. The mixture was then quenched with 1 N NaOH (100 mL) and extracted with DCM (250 mL). The organic layer was washed with H2O (150 mL) and then with a brine solution (150 mL) and dried over Na2SO4. The solvents were removed in vacuo and the residue was purified by flash column chromatography (PE/EtOAc=10/1 to 5/1) to afford 2-(t-butyl-dimethylsilyl)amino-4-chloro-7H-pyrrolo[2,3-d]pyrimidine (CXXII, 11.4 g, 79%) as a light yellow solid. LCMS: (ESI) m/z=283 (M+H)+.

1. customthe resultant reaction
2. stirringwas stirred at ambient temperature for 1.5 h
3. dissolutionThe observed solid material completely dissolved
4. customto form a light brown solution
5. customThe mixture was then quenched with 1 N NaOH (100 mL)
6. extractionextracted with DCM (250 mL)
7. washThe organic layer was washed with H2O (150 mL)
8. dry with materialwith a brine solution (150 mL) and dried over Na2SO4
9. customThe solvents were removed in vacuo
10. customthe residue was purified by flash column chromatography (PE/EtOAc=10/1 to 5/1)

ORD record

ord-dde75e41acd94edfb6faf674b345f674

Source dataset

uspto-grants-2016_05

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US09351972B2