Current compounds help treat anxiety, addiction and appetite disorders. 1. Claim 1: a formula compound (1),where: Ar¹ represents a 5- or 6-membered heteroaryl selected from the group consisting of pyrrolyl, pyrazolyl, triazolyl, oxazolyl, thiazolyl, oxadiazolyl, thiophenyl, pyridinyl, pyrimidinyl, pyrazinyl and pyridazinyl; wherein said heteroaryl is unsubstituted, mono- or disubstituted, where the substituents are independently selected from the group consisting of C₁₋₄ alkyl,C₁₋₄ alkoxy,halogen, cyano, C₁₋₃ fluoroalkyl and C₁₋₃ fluoroalkoxy;R¹ represents an optional substituent selected from C₁₋₄ alkyl,C₁₋₄ alkoxy,h. Hydrogen Xi and halogen; RZ for hydrogen, hydrocarbyl c832131;C₁₋₄ alkoxy,halogen, or cyano; R³ represents hydrogen, C₁₋₄ alkyl,C₁₋₄ alkoxy,Calcium fluoride c83216c83318323 or halogen; r83088 stands for hydrogen, hydrocarbon c83318324;Calcium fluoride c8321c83183323;(o) Halogen; r8309099 is an optional substitute of morphine cyclic carbon atom, in which the substitute is methyl or ethyl alone; Q stands for cr8310;or, in the case that R² is C₁₋₄ alkyl or C₁₋₄ alkoxy,Q stands for cr.8310o n, where r.8310 stands for hydrogen, fluorine or methyl, or a salt acceptable for its drug;Los compuestos de la presente son útiles en el tratamiento de trastornos de ansiedad, adicción y trastornos del apetito. Reivindicación 1: Un compuesto de la fórmula (1), donde: Ar¹ representa un heteroarilo de 5 ó 6 miembros seleccionado del grupo que consiste en pirrolilo, pirazolilo, triazolilo, oxazolilo, tiazolilo, oxadiazolilo, tiofenilo, piridinilo, pirimidinilo, pirazinilo y piridazinilo; donde dicho heteroarilo está no sustituido, mono- o disustituido, donde los sustituyentes se seleccionan de manera independiente del grupo que consiste en alquilo C₁₋₄, alcoxi C₁₋₄, halógeno, ciano, fluoroalquilo C₁₋₃ y fluoroalcoxi C₁₋₃; R¹ representa un sustituyente opcional seleccionado de alquilo C₁₋₄, alcoxi C₁₋₄, hidroxi y halógeno; R² representa hidrógeno, alquilo C₁₋₄, alcoxi C₁₋