Table 4. Introduction of Chlorine Replacements at the Pyridine C-3 Position.
Free base.
TFA salt.
The CF3 substituent is at C-5 according to 8-(3-(4-(1-methyl-1H-pyrazol-4-yl)phenyl)-5-(trifluoromethyl)pyridin-4-yl)-2,8-diazaspiro[4.5]decan-1-one.
The CF3 substituent is at C-5 according to 8-(3-(1-methyl-2,2-dioxido-1,3-dihydrobenzo[c]isothiazol-5-yl)-5-(trifluoromethyl)pyridin-4-yl)-2,8-diazaspiro[4.5]decan-1-one.
The CF3 substituent is at C-5 according to 8-(3-(4-(1-methyl-1H-pyrazol-4-yl)phenyl)-5-(trifluoromethyl)pyridin-4-yl)-1-oxa-3,8-diazaspiro[4.5]decan-2-one.