(1α,4α)-4-(2,6-Diamino-9H-purin-9-yl)-2-cyclopentenyl-carbinol;Abacavir Impurity 3(Abacavir EP Impurity C);(Abacavir EP Impurity C);Abacavir Related CoMpound A;6-aminocarbovir;(-)-2,6-Diamino-9-[(1R)-4β-(hydroxymethyl)-2-cyclopentene-1β-yl]-6,9-dihydro-1H-purine;2-Cyclopentene-1-methanol, 4-(2,6-diamino-9H-purin-9-yl)-, (1S-cis)-;Descyclopropyl Abacavir