potassium tert-butylate; lithium diisopropyl amide 1.)-78 deg C,in THF, diluted with ether, 2.) in THF, 1h, at room temperature; Multistep reaction. Title compound not separated from byproducts;

potassium tert-butylate; lithium diisopropyl amide 1.)-78 deg C,in THF, diluted with ether, 2.) in THF, 1h, at room temperature; Multistep reaction. Title compound not separated from byproducts;

potassium tert-butylate; lithium diisopropyl amide 1.)-78 deg C,in THF, diluted with ether, 2.) in THF, 1h, at room temperature; Multistep reaction. Title compound not separated from byproducts;