Sodium Carbonate → (S)-2-(5-(3-Amino-6-methoxy-5-(trifluoromethyl)-4-vinylpyridin-2-yl)-1,3,4-oxadiazol-2-yl)-1,1,1-trifluoropropan-2-ol

Participants

Reaction Conditions

Reaction Steps

To a solution of (S)-2-(5-(3-amino-4-chloro-6-methoxy-5-(trifluoromethyl)pyridin-2-yl)-1,3,4-oxadiazol-2-yl)-1,1,1-trifluoropropan-2-ol (Ex 13.1) (160 mg, 0.393 mmol) in MeCN (1 ml) was added bis(triphenyl phosphine)palladium(II) chloride (Aldrich) (83 mg, 0.118 mmol) followed by 4,4,5,5-tetramethyl-2-vinyl-1,3,2-dioxaborolane (Sigma Aldrich)(0.087 ml, 0.511 mmol). 2M Sodium carbonate (0.885 ml, 1.770 mmol) was added and the resulting mixture was heated at 130° C. for 30 minutes using microwave radiation. The mixture was filtered through Celite® and washed through with EtOAc. The filtrate was diluted further with EtOAc (50 ml) and washed with sat.NaHCO3, water, brine and dried over MgSO4. Isolute Si-TMT (2,4,6-trimercaptotriazine silica, palladium scavenger) was added the mixture was stirred for 30 mins and filtered. The solvent was removed in vacuo to afford the title compound which was used without further purification;

Provenance & Evidence