8,8-dimethyl-2-methylthio-5-(4-nitrophenyl)-10-(2',3',5'-tri-O-acetyl-β-D-arabino-furanosyl)-5,8,9,10-tetrahydropyrimido[4,5-b]quinoline-4,6-dione 在
甲醇 、
氨 作用下,
以42%的产率得到8,8-dimethyl-2-methylthio-5-(4-nitrophenyl)-10-(β-D-arabinopyranosyl)-5,8,9,10-tetrahydropyrimido[4,5-b]quinoline-4,6-dione