ethanedioic,dihydro,pyran,methyl,ester,2h-pyran,dihydro-2h-pyran
2H-pyran
666712-18-1(3AR,5R,6R,7S,7AR)-HEXAHYDRO-6,7-DIHYDROXY-5-(HYDROXYMETHYL)-2H-PYRANO[2,3-D]OXAZOLE-2-THIONE
159195-02-51H-as-Indaceno[3,2-d]oxacyclododecin-7,15-dione,2-[(6-deoxy-2-O-methyl-a-L-mannopyranosyl)oxy]-13-[[5-(dimethylamino)tetrahydro-6-methyl-2H-pyran-2-yl]oxy]-9-ethyl-2,3,3a,5a,5b,6,9,10,11,12,13,14,16a,16b-tetradecahydro-14-methyl-,[2R-[2R*,3aS*,5aR*,5bS*,9