(+/-)-9-{(1.beta.,2.alpha.,3.beta.)-2,3-bis(hydroxymethyl)-1-cyclobutyl]hypoxanthine (+/-)-Cyclobut-H (+/-)bis(HOCH2)Cyclobut-H 126452-01-5 6H-Purin-6-one, 9-[2,3-bis(hydroxymethyl)cyclobutyl]-1,9-dihydro-, (1a,2b,3a)-(1)- AIDS-001273 AIDS001273