"Saneyoshi Hisao,Okamoto Itaru,Masaki Yoshiaki,Ohkubo Akihiro,Seio Kohji,Mitsuo","Facile synthesis of 2 '-O-cyanoethyluridine by ring-opening reaction of 2,2 '-anhydrouridine with cyanoethyl trimethylsilyl ether in the presence of BF3 center dot Et2O",,"Tetrahedron Letters",,"Vol. 48","No. 48","pp. 8554-8557",2007,Nov.