A series of 4,6-bis-(1,2,3-triazolyl)-pyrimidine and 4,6-bis-(1,2,3-triazolyl)-pyridine anion receptors were synthesized and the effect of the pyrimidine and pyridine moieties on their binding properties was examined. We found that intramolecular interactions preorganize the 4,6-bis-(1,2,3-triazolyl)-pyridine receptors resulting in higher anion binding constants in comparison with the nonpreorganized 4,6-bis-(1,2,3-triazolyl)-pyrimidine receptor. (C) 2013 Elsevier Ltd. All rights reserved.
[EN] NOVEL PROCESSES FOR PREPARING TRIAZOLO [4,5-D]- PYRIMIDINES, INCLUDING TICAGRELOR, VIANEW INTERMEDIATES AND NEW ROUTE OF SYNTHESIS.<br/>[FR] NOUVEAUX PROCÉDÉS DE PRÉPARATION DE TRIAZOLO[4,5-D]-PYRIMIDINES, DONT LE TICAGRELOR, VIA DE NOUVEAUX INTERMÉDIAIRES ET UNE NOUVELLE VOIE DE SYNTHÈSE
申请人:ANLON CHEMICAL RES ORGANIZATION
公开号:WO2015162630A1
公开(公告)日:2015-10-29
The present invention relates to novel processes for preparing triazolo [4,5-d] pyrimidines, including Ticagrelor, via new intermediates and new routes of synthesis. The synthesis begins with readily available and inexpensive starting material such as 5-nitro-2,4,6-trichloropyrimidine and leads to series of novel intermediates, which are commercially viable and industrially advantageous (solid intermediates, high yields and convenient experimental condition) for the preparation of highly pure Ticagrelor.
Preorganization in bistriazolyl anion receptors
作者:Tamara Merckx、Peter Verwilst、Wim Dehaen
DOI:10.1016/j.tetlet.2013.05.133
日期:2013.8
A series of 4,6-bis-(1,2,3-triazolyl)-pyrimidine and 4,6-bis-(1,2,3-triazolyl)-pyridine anion receptors were synthesized and the effect of the pyrimidine and pyridine moieties on their binding properties was examined. We found that intramolecular interactions preorganize the 4,6-bis-(1,2,3-triazolyl)-pyridine receptors resulting in higher anion binding constants in comparison with the nonpreorganized 4,6-bis-(1,2,3-triazolyl)-pyrimidine receptor. (C) 2013 Elsevier Ltd. All rights reserved.
Synthetic and Structural Exploration of [2<sub>4</sub>]Tetrathiacalix[2]arene[2]pyrimidines
作者:Mahendra P. Sonawane、Kristof Van Hecke、Jeroen Jacobs、Joice Thomas、Luc Van Meervelt、Wim Dehaen、Wim Van Rossom
DOI:10.1021/jo301321w
日期:2012.10.5
acalix[2]arene[2]pyrimidines—has been synthesized via a straightforward SNAr reaction. The conformational properties and intra-annular dimensions of the [24]thiacalix[2]arene[2]pyrimidines were evaluated by X-ray structure analysis and compared with known homothia- and thiacalixarenes. Post-macrocyclization oxidation of the bridging sulfur moieties resulted in a [24]sulfonylcalix[2]arene[2]pyrimidine
通过直接的S N Ar反应合成了新型的两个原子桥连的亚环芳基[2 4 ]硫杂杯[2]芳烃[2]嘧啶。通过X射线结构分析评估了[2 4 ]硫杂杯[2]芳烃[2]嘧啶的构象性质和环内尺寸,并将其与已知的同型异硫代和硫杂杯芳烃进行了比较。桥环硫部分的宏环化后氧化产生了[2 4 ]磺酰基杯[2]芳烃[2]嘧啶,这使磺酰基杯芳烃之间的孔腔尺寸得以探索。