The present invention provides processes for the preparation of sugammadex: (I) In one aspect, there is provided a process for the preparation of sugammadex from 8-per-deoxy-8-bromo-γ-cyclodextrin and 3-mercaptopropionic acid. In another aspect, there is provided an alternative process for the preparation of sugammadex from 8-per-deoxy-8-bromo-γ-cyclodextrin and disodium 3-mercaptopropionate. In another aspect, there is provided a process for the preparation of 8-per-deoxy-8-bromo-γ-cyclodextrin, which may be used in the production of sugammadex. In one such aspect, there is provided a process for the preparation of 8-per-deoxy-8-bromo-γ-cyclodextrin from γ-cyclodextrin and a brominating agent. In another such aspect, there is provided a process for the preparation of 8-per-deoxy-8-bromo-γ-cyclodextrin comprising, inter alia, reacting γ-cyclodextrin with an electrophilic brominating agent, a deoxygenating agent, and an acid in the presence of an organic solvent.
本发明提供了制备舒马曲库
铵的过程:(I)在一个方面,提供了一种从8-去氧-8-
溴-γ-
环糊精和
3-巯基丙酸制备舒马曲库
铵的方法。在另一个方面,提供了一种从8-去氧-8-
溴-γ-
环糊精和二钠盐
3-巯基丙酸制备舒马曲库
铵的替代方法。在另一个方面,提供了一种用于生产舒马曲库
铵的8-去氧-8-
溴-γ-
环糊精的制备方法。在其中一个方面,提供了一种从γ-
环糊精和
溴化试剂制备8-去氧-8-
溴-γ-
环糊精的方法。在另一个方面,提供了一种从γ-
环糊精与亲电
溴化试剂、脱氧剂和酸在有机溶剂存在下反应制备8-去氧-8-
溴-γ-
环糊精的方法。