2-(Tributylstannyl)pyrazine → HCID 57590475, compound

Participants

Reaction Conditions

Reaction Steps

A solution of 3-[4-[2-(7-bromo-4-methoxy-6-azaindol-3-yl)-2-oxoacetyl]piperazin-1-yl]-4-phenyl-cyclobut-3-ene-1,2-dione (0.030 g, 0.057 mmol) and 2-tributylstannylpyrazine (0.025 g, 0.069 mmol) in dioxane (3 mL) was purged with Ar and then Pd(PPh3)4 (0.020 g, 0.017 mmol) was added, the reactor was sealed and the mixture was heated at 90° C. for 16 h. The cooled reaction mixture was diluted with EtOAc, washed (1M aqueous KF, brine), dried (Na2SO4) and evaporated to give a solid. Purification of this material by preparative HPLC (C-18/10-90% MeCN-5 mmolar aqueous NH4OAc) gave the title compound (0.002 g, 7%) as a yellow solid:

Provenance & Evidence