The title nucleoside 9 was synthesized by alkylation of 8-oxoadenosine
(7) with 4-benzyloxy-3,5 dibromobenzyl bromide, followed by Dimroth r
earrangement and acid hydrolysis. 2'-Deoxy version of this reaction se
quence accomplished the first synthesis of aplidiamine (6). (C) 1998 E
lsevier Science Ltd. All rights reserved.