Sodium Carbonate → HCID 57537662, compound

A mixture of 2-(5-Bromo-pyridin-3-yl)-2-hydroxy-N,N-dimethyl-acetamide (40 mg, 0.15 mmol), bis(pinacol)diborane (47 mg, 0.18 mmol), potassium acetate (45 mg, 0.46 mmol), and 1,1′-bis(diphenylphosphino)ferrocenepalladium(II)-dichloride dichlormethane adduct (6 mg, 0.007 mmol) in dimethylacetamide (1 mL) was irradiated in a Personal Chemistry Optimizer at 120° C. for 30 min. 5-Bromo-3-(2-methoxy-phenyl)-4-trifluoromethyl-1-(2-trimethylsilanyl-ethoxymethyl)-1H-pyrrolo[2,3-b]pyridine (39 mg, 0.077 mmol), sodium carbonate solution (2M in water, 0.39 mL, 0.77 mmol), and additional 1,1′-bis(diphenylphosphino)ferrocenepalladium(II)-dichloride dichlormethane adduct (3 mg, 0.03 mmol) was added and the mixture was irradiated for an additional 30 min at 120° C. Sodium sulfate was added to the crude reaction mixture and the solids were filtered over Celite. The solids were rinsed with ethyl acetate and the combined filtrate was concentrated. The solids were resuspended in ethyl acetate, filtered through a plug of silica and the eluent was concentrated. The resulting oil was dissolved in trifluoroacetic acid (2 mL) and shaken for 5 min. The solution was concentrated and the mixture was redissolved in dimethyl sulfoxide and ethylenediamine. Purification by mass triggered reverse phase HPLC afforded 2-Hydroxy-2-{5-[3-(2-methoxy-phenyl)-4-trifluoromethyl-1H-pyrrolo[2,3-b]pyridin-5-yl]-pyridin-3-yl}-N,N-dimethyl-acetamide (2.5 mg, 0.005 mmol, 7% yield). 1H NMR (500 MHz, MeOH-d4) δ 12.55 (bs, 1H), 8.60 (s, 1H), 8.51 (s, 1H), 8.24 (s, 1H), 7.72 (s, 1H), 7.71 (m, 1H), 7.31 (m, 1H), 7.24 (dd, J=7 Hz, J2=2 Hz, 1H), 6.99 (d, J=7.5 Hz, 1H), 6.95 (td, J=7.5 Hz, J2=1 Hz, 1H), 5.8 (bs, 1H), 5.56 (s, 1H), 3.65 (s, 3H), 2.90 (m, 3H), 2.84 (s, 3H). MS: m/z 471.0 (M+H+).

1. customwas irradiated in a Personal Chemistry Optimizer at 120° C. for 30 min
2. customthe mixture was irradiated for an additional 30 min at 120° C
3. customreaction mixture
4. filtrationthe solids were filtered over Celite
5. washThe solids were rinsed with ethyl acetate
6. concentrationthe combined filtrate was concentrated
7. filtrationfiltered through a plug of silica
8. concentrationthe eluent was concentrated
9. dissolutionThe resulting oil was dissolved in trifluoroacetic acid (2 mL)
10. concentrationThe solution was concentrated
11. dissolutionthe mixture was redissolved in dimethyl sulfoxide
12. customPurification by mass triggered reverse phase HPLC

ORD record

ord-e887dd6a627c40ba8143286cb8aaab47

Source dataset

uspto-grants-2012_04

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US08158647B2