Synonyms: AC1NRSAZ;123882-01-9;123882-02-0;2,3-Dihydro-3-hydroxy-5-(2'-deoxy-beta-D-ribofuranosyl)-furano[2,3-d]pyrimidin-6-(5H)-one;5-hydroxy-3-[(2R,4S,5R)-4-hydroxy-5-(hydroxymethyl)oxolan-2-yl]-5,6-dihydrofuro[2,3-d]pyrimidin-2-one;Furo[2,3-d]pyrimidin-2(3H)-one, 3-(2-deoxy-.beta.-D-erythro-pentofuranosyl)-5,6-dihydro-5-hydroxy-