作者:Abraham Nudelman、Jacob Herzig、Hugo E. Gottlieb、Ehud Keinan、Jeffrey Sterling
DOI:10.1016/0008-6215(87)80209-4
日期:1987.4
There are three main categories of methods for synthesising glucosides and glucuronides (1 + 2 + 3), namely, (a) the Koenigs-Knorr reaction (1, where Y = halogen) and its modifications2, (6) reactions catalysed by Lewis acids3 (1, Y = OAc), and (c) reactions where HO-1 of the starting derivative is unsubstituted (1, Y = OH). Category (c) includes methods in which HO-1 is initially converted into a
合成葡糖苷和葡糖醛酸苷(1 + 2 + 3)的方法主要分为三类,即(a)Koenigs-Knorr反应(1,其中Y =卤素)及其修饰方法2,(6)Lewis酸催化的反应3 (1,Y = OAc),和(c)起始衍生物的HO-1未取代的反应(1,Y = OH)。(c)类包括其中HO-1最初被转化为反应性更高的物质4a-g的方法,以及涉及路易斯酸催化剂'S4h的方法。直接偶合是吸引人的,因为它避免了制备Y = Br,OCNHCC&,OCNHNHR等的反应性,不稳定且易于水解的1衍生物。进一步例证了对简单方法制备糖衍生物的要求,其中糖类具有未经取代的HO-1通过转化成可用于立体选择性糖苷化的糖基氟化物。