Combined solution-phase and solid-phase synthesis of 2-amino-7,8-dihydropteridin-6(5H)-ones
作者:Axel Metzger、Lan-Ying Qin、Andrew G. Cole、Kurt W. Saionz、Marc-Raleigh Brescia、Hubert Gstach、James R. Wareing、Juerg Zimmermann、Wolfgang K-D. Brill、John J. Baldwin、Roland E. Dolle、Ian Henderson
DOI:10.1016/j.tetlet.2009.10.005
日期:2009.12
An efficient and general synthesis of substituted 2-amino-7,8-dihydropteridin-6(5H)-ones using a combination of solution-phase and solid-phase chemistry is described. Solution-phase chemistry was used to produce two pyrimidine regioisomers that were separated by flash column chromatography. Utilizing the desired regioisomer, solid-phase chemistry Was used to effect the rapid construction of the substituted 2-amino-7,8-dihydropteridin-6(5H)-one system in high overall yield and purity. (C) 2009 Elsevier Ltd. All rights reserved.