Pyridine series

methyl 6-nitro-1H-indole-2-car

6-amino-1H-indole-2-carboxylic

methyl 6-nitroindoline-2-carbo

6-nitroindoline-2-carboxylic a

6-benzyl-5,6,7,8-tetrahydro-1,

5,6,7,8-tetrahydro-1,6-naphthy

2-chloro-5,6,7,8-tetrahydro-1,

6-benzyl-2-chloro-5,6,7,8-tetr

3-(bromomethyl)tetrahydrofuran

2,6-diazaspiro[3.3]heptane

tert-butyl 2,6-diazaspiro[3.3]

di-tert-butyl 2,6-diazaspiro[3