Synthesis and Properties of N,N′-Disubstituted Ureas and Their Isosteric Analogs Containing Polycyclic Fragments: II. N-(4-Oxoadamantan-1-yl)-N′-[fluoro(chloro)phenyl]ureas

Synthesis and Properties of 1,3-Disubstituted Ureas and Their Isosteric Analogs Containing Polycyclic Fragments: IV.1 1-(Bicyclo[2.2.1]hept-5-en-2-yl)-3-(fluoro, chlorophenyl)ureas

“…Comparing the melting point of compound 4c with those of its adamantane analogs we can note that the bicyclo[2.2.1]hept-5-enyl fragment decreases the melting point by 27°С compared to the adamantyl [20] and by 56°С compared to the 4-oxoadamantyl fragments [23].…”