Start with an imidazole ring (five-membered aromatic ring with two nitrogens in a 1,3/meta relationship). One imidazole nitrogen is ethylated (-CH2-CH3). The carbon between the two nitrogens (the imidazole C flanked by N and N) is bonded to a methylene linker (-CH2-) that connects to the nitrogen (position 1) of a six-membered nitrogen-containing ring.

That six-membered heterocycle has N at position 1, a C3=C4 double bond, and all other ring bonds single. From position 4 of this ring, a phenyl ring is attached; on this phenyl, the para position relative to the attachment carries a fluorine substituent.