3′-Adenylic acid, 5-O-[hydroxy[2-[4-[2-[4-(2-hydroxyethoxy)phenyl]ethenyl]phenoxy]ethoxy]phosphinyl]thymidylyl-(3′→5′)-thymidylyloxy-1,3-propanediyliminocarbonyl-1,4-phenylene-1,2-ethenediyl-1,4-phenylenecarbonylimino-1,3-propanediyloxyphosphinico-(3′→5′)-2′-deoxyadenylyl-(3′→5′)-2′-deoxy-, cyclic nucleotide