脂环烃分子中两个碳环共有一个碳原子称为螺环烃，可形成螺环化合物
tert-Butyl 2,9-diazaspiro[5.5]undecane-9-carboxylate hydrochloride
3,9-Diazaspiro[5.5]undecan-2-one
1,4-Dioxaspiro[4.5]decan-8-yl 4-methylbenzenesulfonate
2,2',7,7'-Tetrabromo-9,9'-spirobifluorene
tert-Butyl 5,8-diazaspiro[3.5]nonane-5-carboxylate
4,4,5,5-Tetramethyl-2-(spiro[2.5]oct-5-en-6-yl)-1,3,2-dioxaborolane
1,4,9,12-Tetraoxadispiro[4.2.4.2]tetradecane
Potassium (S)-5-(tert-butoxycarbonyl)-5-azaspiro[2.4]heptane-6-carboxylate
4',5'-Dichloro-3',6'-dihydroxy-2',7'-dimethoxy-3-oxo-3H-spiro[isobenzofuran-1,9'-xanthene]-6-carboxylic acid
1-Oxaspiro[4.5]decan-2-one
Spiro[2.5]octan-6-ylmethanol
tert-Butyl 2,3-dihydrospiro[indene-1,4'-piperidine]-1'-carboxylate
3-Methyl-3,9-diazaspiro[5.5]undecane
4-Benzyl-1-oxa-4,9-diazaspiro[5.5]undecane dihydrochloride
2-Oxa-9-azaspiro[5.5]undecane hydrochloride
tert-Butyl 9-hydroxy-3-azaspiro[5.5]undecane-3-carboxylate
2-Ethyl-2,7-diazaspiro[4.4]nonane
(2R,2'S,3R,5R,5aR,6S,9aR)-3,6-Dihydroxy-5a-(hydroxymethyl)-5,8-dimethyl-2,3,4,5,5a,6-hexahydrospiro[2,5-methanobenzo[b]oxepine-10,2'-oxiran]-7(9aH)-one
3,9-Bis(2,4-di-tert-butylphenoxy)-2,4,8,10-tetraoxa-3,9-diphosphaspiro[5.5]undecane
7-Benzyl-4,7-diazaspiro[2.5]octane
2-(tert-Butoxycarbonyl)-2-azaspiro[3.3]heptane-6-carboxylic acid
2,8-Diazaspiro[4.5]decan-3-one dihydrochloride
tert-Butyl 9-(2-methoxy-2-oxoethyl)-3-azaspiro[5.5]undecane-3-carboxylate
5-Benzyl-5-azaspiro[2.4]heptane-4,7-dione
6'-(Diethylamino)-1',3'-dimethyl-3H-spiro[isobenzofuran-1,9'-xanthen]-3-one
3,9-Di(cyclohex-3-en-1-yl)-2,4,8,10-tetraoxaspiro[5.5]undecane
7-Oxa-2-azaspiro[3.5]nonane
tert-Butyl 1,6-diazaspiro[3.3]heptane-6-carboxylate oxalate
2-Azaspiro[4.5]decan-1-one
5-(tert-Butoxycarbonyl)-5-azaspiro[2.3]hexane-1-carboxylic acid
