A stereoselective synthesis of 9-(3-O-benzyl-5-O-tetrahydropyranyl-β-d-arabinofuranosyl)adenine, a potentially useful intermediate for ribonucleoside synthesis
作者:Christopher J. Woltermann、Yuri A. Lapin、Kevin B. Kunnen、David R. Tueting、Ignacio H. Sanchez
DOI:10.1016/j.tet.2004.02.033
日期:2004.4
A novel synthesis for preparing 9-(3-O-benzyl-5-O-tetrahydropyranyl-β-d-arabinofuranosyl)adenine (6) has been developed which does not require sub zero temperatures or exotic reagents. A key step in this synthesis is the selective protection of the 3′-OH of ara-A with a benzyl group. The 5′-OH is then selectively protected with DHP to yield 6, a potentially useful intermediate. A synthesis of 9-(2
已经开发了不需要9℃以下温度或不需要外来试剂的用于制备9-(3 - O-苄基-5- O-四氢吡喃基-β-d-阿拉伯呋喃糖基)腺嘌呤的新合成物(6)。该合成中的关键步骤是用苄基选择性保护ara-A的3'-OH。然后将5'-OH用DHP选择性保护,得到6(一种可能有用的中间体)。合成了一种抗病毒化合物9-(2,3-二脱氧-2-氟-β-d-苏-五氟呋喃糖基)腺嘌呤(1,FddA)的合成来说明这种新方法的实用性。