8-(2-Nitro-4-(trifluoromethyl)phenyl)-1,4-dioxa-8-azaspiro[4.5]decane
1',3',3'-Trimethyl-6-nitrospiro[chromene-2,2'-indoline]-5',8-diol
7-(3-Nitrophenyl)-5,8-diazaspiro[3.4]octan-6-one
8-Nitro-1,4-dioxaspiro[4.5]decane
6'-Nitrospiro[cyclopropane-1,3'-indoline]
6-Nitrospiro[chroman-2,2'-indole]
4-(4-Chloro-3-nitrobenzoyl)-8-methyl-1-oxa-4-azaspiro[4.5]decane-3-carboxylic acid
5-Chloro-6-nitrospiro[chroman-2,2'-indole]
3-(5-Nitropyridin-2-yl)-3,9-diazaspiro[5.5]undecane
6-Nitro-3-(1,4-dioxaspiro[4.5]dec-7-en-8-yl)-1H-indole
5-Nitro-2',3',5',6'-tetrahydrospiro[indoline-3,4'-pyran]
5-Nitrospiro[benzo[d][1,3]dioxole-2,1'-cyclohexane]
5'-Nitrospiro[cyclopropane-1,3'-indolin]-2'-one
3-(3-Nitrophenyl)-1,4-diazaspiro[4.4]nonan-2-one
7'-Nitro-2',3'-dihydro-1'H-spiro[cyclopropane-1,4'-isoquinoline]
tert-Butyl 5-nitrospiro[indoline-3,4'-piperidine]-1'-carboxylate
5-Nitro-3-(1,4-dioxaspiro[4.5]dec-7-en-8-yl)-1h-indole
5-Nitro-2',3',5',6'-tetrahydrospiro[indoline-3,4'-pyran]-2-one
5-Nitrospiro[benzo[d][1,3]dioxole-2,1'-cyclopentane]
8-(tert-Butyl)-4-(4-chloro-3-nitrobenzoyl)-1-oxa-4-azaspiro[4.5]decane-3-carboxylic acid
