申请人:University of Georgia Research Foundation, Inc.
公开号:US05583225A1
公开(公告)日:1996-12-10
A method is provided for the synthesis of synthesis of acyclic purine nucleosides, particularly 9-(2-hydroxyethoxymethyl)-guanine (acyclovir) and 9-[(1,3-dihydroxy-2-propoxy)methyl]guanine ("DHPG") where the N.sup.2,N.sup.9 -diprotected guanine is reacted with CH.sub.3 C(O)OCH.sub.2 O(CH.sub.2).sub.2)OC(O)CH.sub.3 or diacetoxypropane, respectively, in the presence of a mixture of an acid and acetic anhydride, or in the presence of an acid, where the acid can be phosphoric acid or polyphosphoric acid.
提供了一种合成无环嘌呤核苷的方法,特别是9-(2-羟乙氧甲基)-鸟嘌呤(阿昔洛韦)和9-[(1,3-二羟基-2-丙氧基)甲基]鸟嘌呤(“DHPG”),其中N.sup.2,N.sup.9-二保护鸟嘌呤分别与CH.sub.3 C(O)OCH.sub.2 O(CH.sub.2).sub.2)OC(O)CH.sub.3或二乙酰氧丙烷在酸和乙酸酐混合物的存在下反应,或在酸的存在下反应,其中酸可以是磷酸或聚磷酸。