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    • 6. 发明申请
    • PROCESS FOR SYNTHESIS OF COMPLEX 2-DEOXY-2-IODO PYRANOSIDES OF HIGH PURITY, PARTICULARLY SUITABLE FOR MANUFACTURING PHARMACEUTICALLY PURE ANNAMYCIN
    • 用于合成高纯度的复合2-脱氧-2-碘代吡喃糖苷的方法,特别适用于制备药物稳定的抗体
    • WO2007003236A1
    • 2007-01-11
    • PCT/EP2006/002541
    • 2006-03-14
    • ZACLAD BADAWCZO-PRODUKCYJNY "SYNTEX"SZEJA, WieslawGRYNKIEWICZ, GrzegorzFOKT, Izabela
    • SZEJA, WieslawGRYNKIEWICZ, GrzegorzFOKT, Izabela
    • C07H15/04C07H15/252
    • C07H15/252C07H15/04
    • The method according to the invention comprises using as glycosyl donors high purity 2- deoxy-2-iodo derivatives of sugars of a defined configuration of C-2 carbon with O-alkyl, S- alkyl, O-aryl, S-aryl, O-heteroaryl, S-heteroaryl, O-acyl, O-silyl, O-N-imido, O-P- (phosphino, phosphono, thiophosphono, selenophosphono) groups at the anomeric position, and subjecting them to a condensation reaction with a compound containing a hydroxyl group or a protected hydroxyl group in the presence of electrophilic reagents, followed by deprotection and isolation of a pharmaceutically pure product. The objective of the present invention is to provide a method for preparing complex glycosides by coupling cyclic multifunctional compounds containing hydroxyl functional groups (glycosyl acceptors, including aglycones of natural origin which are known as constituents of active pharmaceutical ingredients) with diastereoisomerically pure 2-deoxy-2-halopyranosyl derivatives containing anomeric substituent capable of exchange under glycosidating conditions, for example by virtue of activation with electrophilic agents. This method substantially simplifies the synthesis of Annamycin. The present invention relies on a regio- and stereoselective reaction of cohalogenating 1,2- unsaturated sugars in the presence of hydroxyl group containing compounds, such as: water, alcohols, phenols, carboxylic acids, silanols, phosphinic acids, phosphoric acids, thiophosphoric acids, selenophosphoric acids, followed by separation of the product with proper C-2 carbon configuration required for the synthesis. As the separation of stereoisomers is carried out at the stage of obtaining a relatively inexpensive intermediate in the form of glycosyl donor, the method of the invention substantially reduces the cost of Annamycin manufacture. Other advantages of the synthesis process of the invention consist in the reduction of the number of stages of the antibiotic manufacture process and in yield increase of the final product.
    • 根据本发明的方法包括作为糖基供体使用具有O-烷基,S-烷基,O-芳基,S-芳基,O - 烷基,C 2- - 杂芳基,S-杂芳基,O-酰基,O-甲硅烷基,ON-亚氨基,OP-(膦基,膦酰基,硫代膦酰基,硒膦酰基)基团,并使其与含有羟基的化合物缩合反应 或在亲电试剂存在下保护的羟基,然后脱保护和分离药学上纯的产物。 本发明的目的是提供一种通过将含有羟基官能团(糖基受体,包括天然来源的糖苷配基,已知为活性药物成分的成分)的环状多官能化合物与非对映体纯的2-脱氧-4- 含有能够在糖苷化条件下交换的异头取代基的2-卤吡喃糖基衍生物,例如通过用亲电子试剂活化。 该方法基本上简化了安环素的合成。 本发明依赖于在含羟基的化合物如水,醇,酚,羧酸,硅烷醇,次膦酸,磷酸,硫代磷酸的存在下共卤化1,2-不饱和糖的区域和立体选择性反应 ,硒磷酸,然后用合成所需的合适的C-2碳配置分离产物。 由于立体异构体的分离在获得糖基供体形式的相对便宜的中间体的阶段进行,本发明的方法显着降低了安环素制造的成本。 本发明合成方法的其它优点在于减少抗生素制造过程的阶段数量和最终产品的产率增加。