The present invention discloses flinderole compounds/analogues of formula I and to a process for the preparation of same, comprising stereo- and regioselective [3+2] cycloaddition reaction of a tertiary alcohol (1a') and a sulphonated diene (1b') in presence of Lewis acid selected from Cu(OTf)2 or BF3OEt2 and a non-polar solvent at room temperature. The flinderole compounds /analogues of the instant invention and prepared by the process described therein is represented by the general formula I,(The formula I should be inserted here) wherein R1-R4 are described herein in the specification.
本发明公开了公式I的flinderole化合物/类似物以及其制备方法,包括在室温下,在Lewis酸Cu(OTf)2或BF3OEt2和非极性溶剂的存在下,对
三级醇(1a')和磺化二
烯(1b')进行立体和区域选择性的[3+2]环加成反应。本发明的flinderole化合物/类似物由所述方法制备,其通式I表示如下,其中R1-R4在本说明书中描述。