The present Invention relates to Derivatives of carbamate, urea, Solid forms, their preparation, their use as medicines. These compounds are H3 Receptor Antagonists and are also potentially useful in the treatment of a wide range of disorders including narcolepsy.LA PRESENTE INVENCIÓN SE REFIERE A DERIVADOS DE CARBAMATO/UREA, SUS FORMAS SÓLIDAS, SU PREPARACIÓN, SU USO COMO MEDICAMENTOS. ESTOS COMPUESTOS SON ANTAGONISTAS DEL RECEPTOR H3 Y SON, ADEMÁS, POTENCIALMENTE ÚTILES EN EL TRATAMIENTO DE UNA AMPLIA GAMA DE TRASTORNOS, PARTICULARMENTE NARCOLEPSIA.