3-Oxabicyclo[3.1.0]hexane-2,4-dione
cis-Tetrahydro-1H-cyclopenta[c]furan-1,3(3aH)-dione
Oxecane-2,10-dione
6,6-Dimethyl-3-oxabicyclo[3.1.0]hexane-2,4-dione
(3aS,7aS)-Hexahydroisobenzofuran-1,3-dione
3a,4,7,7a-Tetrahydro-4,7-ethanoisobenzofuran-1,3-dione
(3aR,4S,7R,7aS)-rel-Hexahydro-4,7-methanoisobenzofuran-1,3-dione
Bicyclo[2.2.2]oct-7-ene-2,3,5,6-tetracarboxylic dianhydride
3-Oxabicyclo[3.2.0]heptane-2,4-dione
3-Oxabicyclo[3.2.1]octane-2,4-dione
Diglycolicanhydride
Dihydro-1H-cyclopenta[1,2-c:3,4-c']difuran-1,3,4,6(3aH,3bH,6aH)-tetraone
[1,4]Dithiino[2,3-c:5,6-c']difuran-1,3,5,7-tetraone
Tetrahydro-1H-oxazolo[3,4-a]pyridine-1,3(5H)-dione
Difuro[3,4-b:3',4'-d]furan-1,3,5,7(3aH,4aH,7aH,7bH)-tetraone
4-Methylhexahydro-4,7-epoxyisobenzofuran-1,3-dione
(7R,7AR)-7-ethyltetrahydropyrrolo[1,2-c]oxazole-1,3-dione
trans-Hexahydroisobenzofuran-1,3-dione
8-(7-Hexyl-1,3-dioxo-1,3,3a,4,7,7a-hexahydroisobenzofuran-4-yl)octanoic acid
(7S,7AS)-7-ethyltetrahydropyrrolo[1,2-c]oxazole-1,3-dione
