(±)-Pestalotin (1) was synthesized by employing a stereoselective reduction of a 5-alkyltetronate derivative (3) and a two-carbon elongation reaction of the aldehyde (13) with ethyl diazoacetate in the presence of stannous chloride as key steps.
                                    (±)-Pestalotin (1) 的合成方法为:首先对 5-烷基
四氢呋喃酸酯 (3) 进行立体选择性还原,然后对醛 (13) 与
重氮乙酸乙酯进行双碳延长反应,其中关键步骤是在
氯化亚锡的存在下进行。