<unk>  is an opiate analogue that is an derivative of metopon which has been substituted with an ethoxy group at the 14-position. It is a highly potent analgesic drug several hundred times stronger than morphine.
14-Ethoxymetopon
14-Methoxymetopon
14-Phenylpropoxymetopon
N-Phenethyl-14-ethoxymetopon
Cadexomer iodine
Pilocarpine 
Enilconazole
Sulconazole