10-amino-7,8-bis(benzoyloxy)benzo[a]pyrene 、
6-chloro-9-(2-deoxy-3,5-bis-O-(tert-butyldimethylsilyl)-β-D-erythro-pentofuranosyl)purine 在
palladium diacetate
caesium carbonate 、
R-(+)-1,1'-联萘-2,2'-双二苯膦 作用下,
以
甲苯 为溶剂,
以50%的产率得到[7-benzoyloxy-10-[[9-[(2R,4S,5R)-4-[tert-butyl(dimethyl)silyl]oxy-5-[[tert-butyl(dimethyl)silyl]oxymethyl]oxolan-2-yl]purin-6-yl]amino]benzo[a]pyren-8-yl] benzoate