1,4-Piperidinedicarboxylic acid, 4-amino-, 1-(1,1-dimethylethyl) ester 、
光气 、
4-氨基-2-三氟甲基苯甲腈 、
4-(2,4-dioxo-1,3-diazaspiro(4.5)decan-3-yl)-2-(trifluoromethyl)-benzonitrile 以afforded 4-(2,4-dioxo-1,3,8-triazaspiro[4.5]dec-3-yl)-2-trifluoromethylbenzonitrile 112.1的产率得到4-(2,4-dioxo-1,3,8-triazaspiro[4.5]dec-3-yl)-2-trifluoromethylbenzonitrile