1 UH4 N-(5-methylthiophen-2-yl)-N'-pyridin-3-ylurea 1.000 2 VZM N-(6-methoxypyridin-3-yl)-N'-thiophen-2-ylurea 0.833 3 K0G N-phenyl-N'-pyridin-3-ylurea 0.778 4 M6I N-(3-chlorophenyl)-N'-(pyridin-3-yl)urea 0.737 5 Q2G N-(3-chlorophenyl)-N'-(4-methylpyridin-3-yl)urea 0.700 6 Q3U N-(5-aminopyridin-3-yl)-N'-(3-chlorophenyl)urea 0.700