2,2'-Anhydro-1-(beta-D-arabinofuranosyl)orotic acid ethyl ester 2,2'-Anhydro-1-(beta-arabinofuranosyl)orotic acid ethyl ester 33780-80-2 6H-Furo(2',3'-4,5)oxazolo(3,2-a)pyrimidine-8-carboxylic acid, 2,3,3a,9a-tetrahydro-3-hydroxy-2-(hydroxymethyl)-6-oxo-, ethyl ester, (2S-(2alpha,3beta,3abeta,9abeta))- Ethyl 2,2'-anhydro-1-(beta-D-arabinofuranosyl)orotate Ethyl ara-orotate