BAS 06502921;STL006310;AKOS000580223;478253-05-3;SR-01000365028;SR-01000365028-1;7-(3-Chlorobut-2-en-1-yl)-8-(4-(2-hydroxyethyl)piperazin-1-yl)-1,3-dimethyl-1H-purine-2,6(3H,7H)-dione;7-[(2E)-3-chlorobut-2-en-1-yl]-8-[4-(2-hydroxyethyl)piperazin-1-yl]-1,3-dimethyl-3,7-dihydro-1H-purine-2,6-dione;7-[(2Z)-3-chlorobut-2-en-1-yl]-8-[4-(2-hydroxyethyl)piperazin-1-yl]-1,3-dimethyl-2,3,6,7-tetrahydro-1H-purine-2,6-dione