Definition: Translate the given Spanish text to English

Positive Example 1 -
Input: A method for converting a series of m-bit information words to a modulated signal is described.
Output: Se describe un método para convertir una serie de palabras de informacion de bits m a una señal modulada.

Positive Example 2 -
Input: A last plastic cover is applied as a final protection.
Output: La presente invencion comprende un nuevo mezclador termocinetico.

Negative Example 1 -
Input: Luminescent optical sensor.
Output: SENSOR OPTICO LUMINISCENTE.

Negative Example 2 -
Input: The urinal is similar to a common toilet.
Output: El común es similar a un inodoro orinal.

Now complete the following example -
Input: Unsaturated 1-amino-alkylcyclohexane compounds which are systemically-active as NMDA, 5HT3 and nicotinic receptor antagonists, pharmaceutical compositions comprising the same, method of preparation thereof, and method of treating CNS disorders which involve disturbances of glutamatergic, serotoninergic, and nicotinic transmission, treating immunomodulatory disorders, and antimalaria, antitrypanosomal, anti-Borna virus, anti-HSV and anti-Hepatitis C virus activity.
Output: Compuestos de aminociclohexano y aminoalquilciclohexano, que son activos en forma sistemica como antagonistas del receptor NMDA y son efectivos para inhibir la hiperfosforilacion anormal de la proteina tau asociada a microtubulos, metodos para tratar trastornos que resultan o estan asociados con la hiperfosforilacion anormal de la proteina tau asociada a microtubulos, y composiciones farmaceuticas que los comprenden.