反应详情

By reacting the compound from Example II with phthalimide in the presence of equimolar amounts of triphenylphosphane and diethyl azodicarboxylate in tetrahydrofuran, the desired product is obtained in 80% yield in the form of a syrup, which is further reacted directly. Rf =0.46 (toluene/ethyl acetate 3:1)