(2R-(2alpha,3beta,3Abeta,9abeta))-2,3,3a,9a-tetrahydro-3-hydroxy-(hydroxymethyl)-6H-furo(2',3':4,5)oxazolo(3,2-a)pyrimidin-6-one 2,2'-Anhydro(1-beta-D-arabinofuranosyl)uracil 2,2'-Anhydrouridine 2,2'-O-Cyclouridine 3736-77-4 6H-Furo(2',3':4,5)oxazolo(3,2-a)pyrimidin-6-one, 2,3,3a,9a-tetrahydro-3-hydroxy-2-(hydroxymethyl)-, (2R-(2alpha,3beta,3abeta,9abeta))- (9CI) 6H-Furo(2',3':4,5)oxazolo(3,2-a)pyrimidin-6-one, 2,3,3a,9a-tetrahydro-3-hydroxy-2-(hydroxymethyl)-, stereoisomer (VAN) (8CI) Cyclouridine EINECS 223-107-6 NSC 157148 O2,2'-Cyclouridine (VAN)