2H-Furo(2',3':4,5)oxazolo(3,2-a)-1,3,5-triazine-2,4(3H)-dione, 5a,7,8,8a-tetrahydro-8-hydroxy-7-(hydroxymethyl)-3-methyl-, (5aR-(5aalpha,7beta,8alpha,8aalpha))- 66528-42-5 beta-D-Arabinofuran(1',2':4,5)oxazolo-1,3,5-triazine-5-N-methyl-4,6-dione