Toluene → HCID 58994583, compound

Participants

Reaction Conditions

Reaction Steps

To a suspension of 4-cyano-1H-imidazole-2-carboxylic acid [4-bromo-2-(4,4-dimethyl-cyclohex-1-enyl)-phenyl]-amide (71 mg, 0.18 mmol) (as prepared in Example 14, step (c)) in 3 mL THF at −40° C. was added a 2M solution of isopropylmagnesium chloride (i-PrMgCl) in THF (0.23 mL, 0.46 mmol) and the solution was then warmed to 0° C. and stirred for 10 min. The solution was then cooled to −78° C. and a 1.7 M solution of t-BuLi in pentane (0.28 mL, 0.48 mmol) was added dropwise and then a 40% solution of ethyl glyoxalate in toluene (0.23 mL, 0.90 mmol) was added immediately thereafter. After 5 min at −78° C. the reaction was quenched with satd NH4Cl (10 mL) and extracted with EtOAc (3×10 mL) and dried over Na2SO4 and concentrated in vacuo. The title compound was purified by flash chromatography (silica gel) eluting with 50-100% EtOAc/hexanes to give 37 mg (50%) of the title compound as a white solid. Mass spectrum (ESI, m/z): Calcd. for C23H26N4O2, 423.2 (M+H). found 423.1.

Provenance & Evidence