The present invention relates to a tetrahydrofuran compound having cis substituents, the derivatives thereof and a process for preparing the same, and in particular relates to a dihydrofuran-3-ylidene triflate compound having cis substituents at C2 and C5 positions prepared through Prins-type cyclization using a homopropargylic alcohol derivative as a starting material in the presence of Lewis acid catalyst, a tetrahydrofuran compound having cis substituents at C2, C3 and C5 positions prepared through the hydrolysis of triflate group in the derivatives of the dihydrofuran-3-ylidene triflate compound, and a preparation method thereof.
The derivatives and the target tetrahydrofuran compound prepared according to the present invention are hydrofuran compounds with novel structures having cis substituents at C2, C3 and/or C5 positions, which are useful as a derivative for synthesizing drugs such as an antagonist for neurokinin receptor.
本发明涉及具有顺式取代基的
四氢呋喃化合物,其衍
生物以及制备该化合物的方法,特别涉及通过在
路易斯酸催化剂存在下使用异
丙炔醇衍
生物作为起始物质通过普林斯型环化制备具有C2和C5位置顺式取代基的二氢
呋喃-3-基亚
三氟甲磺酸酯化合物,通过在二氢
呋喃-3-基亚
三氟甲磺酸酯化合物的衍
生物中
水解
三氟甲磺酸酯基而制备具有C2、C3和C5位置顺式取代基的
四氢呋喃化合物的制备方法。根据本发明制备的衍
生物和目标
四氢呋喃化合物是具有新颖结构的羟
呋喃化合物,其在C2、C3和/或C5位置具有顺式取代基,可用作合成药物的衍
生物,例如神经激肽受体拮抗剂。