Starting from a 1,3,5-trichlorobenzene core, i.e., a benzene ring with three chlorine substituents arranged meta to each other. At one of the carbons located between two chlorines, a side chain is attached.

In one carbon between two chlorine, a side chain is attached. 

Side chain description (from the benzene outward):
1. The ring carbon is bonded to an ether oxygen (-O-).
2. The oxygen is linked to an ethylene spacer (-CH2-CH2-).
3. This ethylene connects to a secondary amine nitrogen (-NH-).
4. The nitrogen bonds to the central carbon of an amidine group (-C(=N)-NH-).
5. The amidine nitrogen continues through a methylene linker (-CH2-).
6. Finally, this methylene connects to a tetrahydrofuran ring, specifically at a carbon atom positioned ortho to the ring oxygen.