Compound of formula (IA) ** Formula ** in which A1 represents (C1-C7) alkane -diyl and A2 represents hydrogen or a group of formula ** Formula ** in which * means the point of attachment to the group A1 and R4A means hydrogen, fluorine, chlorine, methyl, tert-butyl, trifluoromethyl, methoxy or trifluoromethoxy, as well as their salts, solvates and solvates of salts.Compuesto de fórmula (I-A)**Fórmula** en la que A1 representa alcano (C1-C7)-diilo y A2 representa hidrógeno o un grupo de fórmula**Fórmula** en la que * significa el punto de unión con el grupo A1 y R4A significa hidrógeno, flúor, cloro, metilo, terc-butilo, trifluorometilo, metoxi o trifluorometoxi, así como sus sales, solvatos y solvatos de las sales..
