申请人:Sinclair Pharmaceuticals Limited
公开号:US07893258B2
公开(公告)日:2011-02-22
It comprises a preparation process of delmopinol or a pharmaceutically acceptable salt and/or a solvate thereof, by submitting the compound of formula (II) where R1 and R2 are the same or different, independently selected from the group consisting of H, (C1-C6)-alkyl or, alternatively, R1 and R2 form, together with the carbon atom to which they are attached, a (C5-C6)-cycloalkyl radical; and R3 is a radical selected from the group consisting of CF3, (C1-C4)-alkyl, phenyl, and phenyl mono- or disubstituted by a radical selected from the group consisting of (C1-C4)-alkyl, halogen and nitro to a deprotection and cyclisation reaction. The process is useful to prepare delmopinol or its salts on an industrial scale. The compound of formula (II) is new and also forms part of the present invention, as well as its preparation process and other new intermediates of said preparation process.
该方法包括通过将式(II)化合物进行去保护和环化反应来制备delmopinol或其药学上可接受的盐和/或溶剂化物的制备过程,其中R1和R2相同或不同,独立地选自H,(C1-C6)-烷基或者,R1和R2与它们所连接的碳原子一起形成(C5-C6)-环烷基基团;R3是选自CF3,(C1-C4)-烷基,苯基以及苯基单取代或双取代的基团,所述基团选自(C1-C4)-烷基,卤素和硝基。该方法有助于在工业规模下制备delmopinol或其盐。式(II)化合物是新的并且也是本发明的一部分,以及其制备过程和该制备过程的其他新中间体。