.alpha.-2'-Deoxy-6-thioguanosine .alpha.-2'-Deoxythioguanosine .alpha.-TGdR .alpha.-Thiodeoxyguanosine 2133-81-5 6H-Purine-6-thione, 2-amino-9-(2-deoxy-.alpha.-D-erythro-pentofuranosyl)-1,9-dihydro- 9H-Purine-6(1H)-thione, 2-amino-9-(2-deoxy-.alpha.-D-erythro-pentofuranosyl)- 9H-Purine-6-thiol, 2-amino-9-(2-deoxy-.alpha.-D-erythro-pentofuranosyl)- NSC71851 Thioguanine 9.alpha.D-2'-deoxyriboside