Water → HCID 22504370, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of the compound obtained in Example 29 (1) (0.5 g) in N,N-dimethylformamide (5 ml), trimethylsilylacetylene (0.65 ml), bistriphenylphosphine palladium dichloride (0.16 g), cuprous iodide (0.04 g) and triethylamine (0.64 ml) were added successively and the mixture was stirred in a sealed tube at 100° C. for 2 hours. After cooling, the reaction solution was poured into water, extracted with ethyl acetate, washed with a saturated aqueous NaCl solution, dried over anhydrous sodium sulfate, filtered and concentrated under reduced pressure. The resulting residue was separated using silica gel column chromatography (hexane:ethyl acetate=4:1) to obtain 0.3782 g of the desired product as a brown oil.

Provenance & Evidence