Regioselective synthesis of 9-substituted-8-azaguanines (5-amino-3-substituted-3,6-dihydro-7<i>H</i>-1,2,3-triazolo[4,5-<i>d</i>]pyrimidin-7-one)
作者:Marcos L. Sznaidman、Lilia M. Beauchamp
DOI:10.1002/jhet.5570330609
日期:1996.11
By modifying previously described methods for the synthesis of 9-substituted-guanines from imidazoles, we have developed a new procedure for the regioselective synthesis of 9-substituted-8-azaguanines (5-amino-3-substituted-3,6-dihydro-7H-1,2,3-triazolo[4,5-d]pyrimidin-7-one) from triazoles in high yields. The method seems suitable for the introduction of a variety of substituents including sugars
通过修改先前描述的由咪唑合成9-取代鸟嘌呤的方法,我们开发了9-取代-8-氮杂鸟嘌呤(5-氨基-3-取代-3,6-二氢-来自三唑的7 H -1,2,3-三唑并[4,5- d ]嘧啶-7-one)高产率。该方法似乎适合引入各种取代基,包括糖,碳环,无环和碳环链。