6-amino-2,4-dichloronicotinonitrile
(R)-1-(4,6-dichloro-5-cyanopyridin-2-yl)-3-(1-phenylethyl)urea
(R)-1-(3-amino-4-chloro-1H-pyrazolo[4,3-c]pyridin-6-yl)-3-(1-phenylethyl)urea
(R)-1-(3-amino-4-methoxy-1H-pyrazolo[4,3-c]pyridin-6-yl)-3-(1-phenylethyl)urea
1-[4-chloro-3-(ethylamino)-1H-pyrazolo[4,3-c]pyridin-6-yl]-3-[1(1R)-1-phenylethyl]urea