10-pyrazin-2-ylphenothiazine

5-chloro-1-ethyl-3-pyrazin-2-ylbenzimidazol-2-one

2-(2-phenylethyl)pyrazine

tert-butyl 3-pyrazin-2-yloxyazetidine-1-carboxylate

1-Pyrazin-2-ylpiperidin-4-amine dihydrochloride