Refers to a compound of formula (i), where q is n or s x1, X2 is n, CH, C - R7, X3 is o, S, among others Het is hetarilo phenyl bicyclic, among others R7 is H, halogen, Oh, among others r1 is a portion cyc1 Y1 - R2 is H, halogen, Oh, among others is A1, A3, among others R3, R4, R5, R6 in If selccionan independently between h, halogen, c1-c4 alkyl, Y1 is CH2, among others or,Among others, cyc1 is selected from the group consisting of phenyl, naphthyl, among others. Preferred compounds are 3.7 di - (pyridin-4-yl) - 5 - [2 - (quinolin-2 - il) ethyl] thieno [2,3-d] pyridazin-3 ona (5H) - 4, 7 - (pyridin-4-yl) - 5 - [2 - (quinolin-2 - il) ethyl] thieno [2,3-d] 4 pyridazin-3 (5H) - One, among others. It also relates to a Pharmaceutical composition that is useful for the treatment of Neurological Disorders.SE REFIERE A UN COMPUESTO DE FORMULA (I), DONDE Q ES O, S X1 ES N, CH X2 ES N, C-R7, X3 ES O, S, ENTRE OTROS HET ES HETARILO BICICLICO, FENILO, ENTRE OTROS R7 ES H, HALOGENO, OH, ENTRE OTROS R1 ES UNA PORCION Y1-CYC1 R2 ES H, HALOGENO, OH, ENTRE OTROS A ES A1, A3, ENTRE OTROS R3,R4,R5,R6 EN FORMA INDEPENDIENTE ENTRE SI SE SELCCIONAN DE HALOGENO, H, C1-C4-ALQUILO, ENTRE OTROS Y1 ES CH2, O, ENTRE OTROS CYC1 SE SELECCIONA DEL GRUPO QUE CONSISTE EN FENILO, NAFTILO, ENTRE OTROS. SON COMPUESTOS PREFERIDOS 3,7-DI(PIRIDIN-4-IL)-5-[2-(QUINOLIN-2-IL)ETIL]TIENO[2,3-D]PIRIDAZIN-4(5H)-ONA, 7-(PIRIDIN-4-IL)-5-[2-(QUINOLIN-2-IL)ETIL]TIENO[2,3-D]PIRIDAZIN-4(5H)-ONA, ENTRE OTROS. TAMBIEN SE REFIERE A UNA COMPOSICION FARMACEUTICA QUE ES UTIL PARA EL TRATAMIENTO DE TRASTORNOS NEUROLOGICOS.
