申请人:Sumika Fine Chemicals Co., Ltd.
公开号:US20030236419A1
公开(公告)日:2003-12-25
An epoxytriazole derivative (V) useful as an intermediate for anti-fungal agents and an intermediate therefor having high quality can be produced economically and efficiently by the following industrial means. A compound of the following formula (I) is reacted with trimethyloxosulfonium salt and the like in the presence of a base to give compound (II), this compound is converted to compound (IV), and this compound is reacted with 1,2,4-triazole in the presence of a base.
1
wherein Ar is a phenyl group optionally substituted by 1 to 3 halogen atom(s) or trifluoromethyl group, R is a hydrogen atom or lower alkyl group, and X is a leaving group.
一种环氧三唑衍生物(V),作为抗真菌剂的中间体以及具有高质量的中间体,可以通过以下工业手段经济高效地生产。在碱的存在下,将以下式(I)的化合物与三甲氧磺酸盐等反应,得到化合物(II),将此化合物转化为化合物(IV),然后在碱的存在下,将此化合物与1,2,4-三唑反应。其中Ar为苯基,可以选择性地被1至3个卤原子或三氟甲基基团取代,R为氢原子或较低的烷基基团,X为离去基团。