Abstract – O6-Methylguanosine and 2-amino-6-chloropurine riboside derivative ... Adenosine derivatives comprising 2-alkoxyadenosine groups that have an alkoxy group at the 2-position ... 2-methoxyadenosine, commonly known as spongosine, was isolated from the Caribbean sponge, ... Cryptotethia crypta, in 1951,1 and it has been reported to possess antiviral activity2 and antiplatelet ... Additionally, many of the 2-alkoxyadenosine derivatives, including ...