作者:Igor Mikhailopulo、Alexandra Denisova、Yulia Tokunova、Ilja Fateev、Alexandra Breslav、Vladimir Leonov、Elena Dorofeeva、Olga Lutonina、Inessa Muzyka、Roman Esipov、Alexey Kayushin、Irina Konstantinova、Anatoly Miroshnikov、Vladimir Stepchenko
DOI:10.1055/s-0036-1590804
日期:2017.11
biocatalyst. An efficient method for 3′-deoxyinosine synthesis starting from inosine was developed. However, the very poor solubility of 2ClAde and 2FAde is the limiting factor of the first approach. The second approach enables this problem to be overcome and it appears to be advantageous over the former approach from the viewpoint of practical synthesis of the title nucleosides. The 3-deoxy-α-d-ribofuranose-1-phosphate
摘要 两种方法的2-fluorocordycepin和2- chlorocordycepin的酶法合成进行了研究:(i)使用的3'-脱氧腺苷(虫草素)和3'-脱氧肌苷(3'dIno)为3-脱氧供体d -ribofuranose重组大肠杆菌嘌呤核苷磷酸化酶(PNP)催化2-氟-(2F Ade)和2-氯腺嘌呤(2Cl Ade)的糖基转移,以及(ii)使用2-氟腺苷和3'-脱氧肌苷交叉糖基化的底物和PNP作为生物催化剂。开发了一种从肌苷开始合成3'-脱氧肌苷的有效方法。但是,2Cl Ade和2F的溶解度非常差Ade是第一种方法的限制因素。第二种方法能够克服这个问题,并且从实际合成标题核苷的角度来看,它比前一种方法更具优势。发现通过PNP在3'dIno磷酸分解中形成的3-deoxy-α- d-呋喃呋喃糖-1-磷酸中间体分别是大肠杆菌胸苷(TP)和尿苷(UP)磷酸化酶的弱底物和边缘底物。最后,一锅煮级联变换3-脱氧d