The molecule is a monosubstituted pyridine ring (six-membered aromatic ring containing one nitrogen).  
Number the ring with the nitrogen as position 1 and proceed clockwise.

Position 1: no substituent.  
Position 2: hydrogen only.  
Position 3: bears an acyl-chloride group, -C(=O)Cl, attached through its carbonyl carbon to the ring.  
Position 4: bears a trifluoromethoxy group, (oxygen bonded to the ring, CF3 bonded to that oxygen).  
Position 5: bears a hydroxyl group, -OH.  
Position 6: bears a methoxy group, -O-CH3.