8-Azaspiro[bicyclo[3.2.1]octane-3,2'-[1,3]dioxolane]
3-Benzyl-3-azaspiro[bicyclo[3.2.1]octane-8,2'-[1,3]dioxolane]
(3a'S,7a'R)-1'-Benzyloctahydrospiro[[1,3]dioxolane-2,5'-indole]
2-Oxo-4-(2-(2-(phenoxymethyl)-1,3-dioxolan-2-yl)vinyl)hexahydro-2H-cyclopenta[b]furan-5-yl [1,1'-biphenyl]-4-carboxylate
(S)-Dihydro-1'H-spiro[[1,3]dioxolane-2,6'-pyrrolo[1,2-c]oxazol]-3'(5'H)-one
6-Oxaspiro[bicyclo[3.1.0]hexane-3,2'-[1,3]dioxolane]
(3AR,4R,5R,6aS)-4-(2-(2-heptyl-1,3-dioxolan-2-yl)ethyl)-5-hydroxyhexahydro-2H-cyclopenta[b]furan-2-one
(4a'S,8a'R)-1'-Benzyloctahydro-1'H-spiro[[1,3]dioxolane-2,6'-quinoline]
(1'R,3a'R,8a'S,9'S,9a'S)-1'-Methyl-3'-oxo-N,N-diphenyl-3',3a',5',7',8',8a',9',9a'-octahydro-1'H-spiro[[1,3]dioxolane-2,6'-naphtho[2,3-c]furan]-9'-carboxamide
(S)-Tetrahydrospiro[[1,3]dioxolane-2,6'-pyrrolo[1,2-c]imidazol]-3'(5'H)-one
Octahydrospiro[cyclopenta[c]pyridine-6,2'-[1,3]dioxolane]
8-(1,3-Dioxolan-2-yl)hexahydroindolizin-5(1H)-one
(1'R,3a'R,4a'R,8a'R,9'S,9a'R)-1'-Methyl-3'-oxodecahydro-1'H-spiro[[1,3]dioxolane-2,6'-naphtho[2,3-c]furan]-9'-carboxylic acid
(1'R,3a'R,4a'R,8a'R,9'S,9a'S)-1'-Methyl-3'-oxo-N,N-diphenyldecahydro-1'H-spiro[[1,3]dioxolane-2,6'-naphtho[2,3-c]furan]-9'-carboxamide
1,4-Dioxa-7-azaspiro[4.5]dec-9-ene
