2-Azaspiro[4.5]decane-3,8-dione
Spiro[3.5]nonan-7-one
6'-Bromo-7'-fluorospiro[cyclopropane-1,3'-indolin]-2'-one
5'-Bromospiro[cyclohexane-1,3'-indolin]-2'-one
Benzyl spiro[indoline-3,4'-piperidine]-1'-carboxylate
4-(Cyclopropylmethyl)-1-oxa-4,9-diazaspiro[5.5]undecan-3-one
4-Ethyl-1-oxa-4,9-diazaspiro[5.5]undecan-3-one
6'-Bromospiro[cyclopropane-1,3'-indoline]
6-Bromo-1',3',3'-trimethylspiro[chromene-2,2'-indoline]
4-Cyclopentyl-1-oxa-4,9-diazaspiro[5.5]undecan-3-one
tert-Butyl 9-cyano-3-azaspiro[5.5]undecane-3-carboxylate
4-(3-Fluorobenzyl)-1-oxa-4,9-diazaspiro[5.5]undecan-3-one
tert-Butyl 7-bromo-2-oxospiro[indoline-3,4'-piperidine]-1'-carboxylate
Spiro[2.5]octan-6-one
tert-Butyl (7-aminospiro[3.5]nonan-2-yl)carbamate
1,4-Diazaspiro[4.5]decan-2-one
6'-(Diethylamino)-1',3'-dimethyl-3H-spiro[isobenzofuran-1,9'-xanthen]-3-one
Spiro[2.4]heptan-4-one
1'-Benzylspiro[indoline-3,4'-piperidine]
4-(4-Fluorobenzyl)-1-oxa-4,9-diazaspiro[5.5]undecan-3-one