A straightforward stereoselective synthesis of D- and L-5-hydroxy-4-hydroxymethyl-2-cyclohexenylguanine

被引:23
|
作者
Wang, J [1 ]
Morral, J [1 ]
Hendrix, C [1 ]
Herdewijn, P [1 ]
机构
[1] Katholieke Univ Leuven, Rega Inst Med Res, Med Chem Lab, B-3000 Louvain, Belgium
来源
JOURNAL OF ORGANIC CHEMISTRY | 2001年 / 66卷 / 25期
关键词
D O I
10.1021/jo015924z
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
A novel and facile synthesis of 5-hydroxy-4-hydroxymethyl-2-cyclohexenylguanine 1 is described. The key steps involve a Diels-Alder reaction of ethyl (2E)-3-acetyloxy-2-propenoate 2 as dienophile with Danishefsky's diene 3 to build up the six-membered ring skeleton, a Fraser-Reid reductive rearrangement of the adduct using LiAlH4, and base-moiety introduction using a Mitsunobu reaction. Optically pure D- and L-1 were obtained via resolution of intermediate 7 with (R)-(-)methylmandelic acid. The synthetic procedure toward racemic 1 consists of only five steps and has proven to be highly efficient toward the synthesis of cyclohexenyl nucleosides.
引用
收藏
页码:8478 / 8482
页数:5
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