Tert-butyl 7,7-dimethyl-6,7-dihydro-2h-pyrazolo[4,3-c]pyridine-5(4h)-carboxylate
Tert-butyl 4-(3-aminopyridin-4-yl)piperazine-1-carboxylate
Tert-butyl 2-(methylthio)-5-oxo-5,6-dihydropyrido[3,4-d]pyrimidine-7(8h)-carboxylate
Tert-butyl (1-(5-iodopyridin-2-yl)cyclobutyl)carbamate