tert-butyl 3-((4-oxo-8-(3-(2-oxoindolin-1-yl)propyl)-1-phenyl-1,3,8-triazaspiro[4.5]decan-3-yl)methyl)benzoate

tert-butyl 3-((8-(3-(3,3-dimethyl-2-oxoindolin-1-yl)propyl)-4-oxo-1-phenyl-1,3,8-triazaspiro[4.5]decan-3-yl)methyl)benzoate

tert-butyl 3-((4-oxo-8-(3-(3-oxo-2H-benzo[b][1,4]oxazin-4(3H)-yl)propyl)-1-phenyl-1,3,8-triazaspiro[4.5]decan-3-yl)methyl)benzoate

tert-butyl 3-((8-(3-(3-cyclopropyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-1-yl)propyl)-4-oxo-1-phenyl-1,3,8-triazaspiro[4.5]decan-3-yl)methyl)benzoate

tert-butyl 3-((4-oxo-8-(3-(2-oxoindolin-3-yl)propyl)-1-phenyl-1,3,8-triazaspiro[4.5]decan-3-yl)methyl)benzoate