申请人:Suh Hearan
公开号:US20120330014A1
公开(公告)日:2012-12-27
The present invention relates to a novel method for preparing an imatinib base, and more particularly to a method for preparing an imatinib base, which comprises reacting 4-(4-methyl-piperazinomethyl)-benzoic acid with a 2,2′-dibenzothiazolyl disulfide derivative in the presence of a phosphine derivative to prepare a novel thioester compound and preparing an imatinib base using the thioester compound as a reaction intermediate. In addition, the invention provides a novel thioester compound, which is used in the preparation of imatinib base, and a preparation method thereof. Ultimately, the invention provides a method of preparing the imatinib base in an economic manner and in high yield and purity and is expected to be used in the commercial production of large amounts of the imatinib base.
本发明涉及一种制备伊马替尼碱的新方法,更具体地涉及一种制备伊马替尼碱的方法,包括在磷化物衍生物存在下,将4-(4-甲基-哌嗪基甲基)-苯甲酸与2,2′-二苯并噻唑基二硫化物衍生物反应,制备一种新的硫酯化合物,并利用该硫酯化合物作为反应中间体制备伊马替尼碱。此外,该发明提供了一种用于制备伊马替尼碱的新硫酯化合物及其制备方法。最终,该发明提供了一种经济高效、高产率和高纯度制备伊马替尼碱的方法,并预计可用于大量商业生产伊马替尼碱。