2-Mercapto-4-(trifluoromethyl)-6,7-dihydro-5h-cyclopenta[b]pyridine-3-carbonitrile
Tert-butyl 3-(pyridin-2-yl)azetidine-1-carboxylate
Tert-butyl 3-(6-chloropyridin-3-yl)azetidine-1-carboxylate
Tert-butyl 3-(6-bromopyridin-2-yl)piperidine-1-carboxylate