Nucleotides. Part LXXVI
作者:Evgeny Kvassiouk、Ramamurthy Charubala、Wolfgang Pfleiderer
DOI:10.1002/hlca.200900413
日期:——
A series of new fluorescing 8‐(6‐hydroxyhexyl)isoalloxazine (=8‐(6‐hydroxyhexyl)benzo[g]pteridine‐2,4(1H,3H)‐dione) derivatives 4–13 were synthesized from 6‐[(6‐hydroxyhexyl)amino]uracil (2) with 1‐chloro‐4‐nitrosobenzene via 8‐chloro‐10‐(6‐hydroxyhexyl)isoalloxazine (3) and subsequent substitution of the Cl‐atom of 3 by various amines (Scheme). Analogously, 8‐substituted 10‐3‐[(2,2‐dimethyl‐1,3‐
一系列新荧光8-(6-羟基己基)异咯嗪(= 8-(6-羟基己基)苯并[克]蝶啶-2,4(ħ,3 ħ) -二酮)衍生物的4 - 13,从6-合成[(6-羟基己基)氨基]尿嘧啶(2)与1-氯-4-硝基苯经由8-氯-10-(6-羟基己基)异咯嗪(3)和体的C1-原子的后续取代3由各种胺(方案)。类似地,8-取代的10- 3 - [(2,2-二甲基-1,3-二氧戊环-4-基)甲氧基]丙基}异咯嗪19,20,和23 - 25制备其上脱保护得到相应的10- [3-(2,3-二羟基)丙基]咯嗪21,22,和26 - 28。其转化成3“ - Ö - (4,4'-二甲氧基三苯甲基)衍生物29 - 33和随后转化成相应的2” - (2-氰乙基Ñ,Ñ -diisopropylphosphoramidites)34 - 38导致了对寡核苷酸新的构建块合成。一系列带有发荧光异异恶嗪37的21-mer寡脱氧核糖核苷