1-deoxy-1-(2-chloro-6-{4-[(cyclohexylcarbamoyl)methoxy]phenylamino}-9H-purin-9-yl)-N-ethyl-2,3-O-(1-methylethylidene)-β-D-ribofuranuronamide                                                                                                                                                              在
                                                                                                                                                                                 
三氟乙酸                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
水                                                                                  为溶剂,
                                                                                                                                                    反应 3.0h,
                                                                                                                以93%的产率得到(2S,3S,4R,5R)-5-(2-chloro-6-(4-(2-(cyclohexylamino)-2-oxoethoxy)phenylamino)-9H-purin-9-yl)-N-ethyl-3,4-dihydroxy-tetrahydrofuran-2-carboxamide