Abstract: The present invention relates to compositions comprising amorphous compounds of Formula (I) or amorphous compounds of Formula (I) salts and to processes for obtaining these. In particular, the invention relates to compositions comprising amorphous compounds of Formula (I) hydrogen fumarate and to processes for obtaining this. Further, the invention also relates to compositions comprising amorphous base of compounds of Formula (I) and to processes for obtaining this. The invention also relates to pharmaceutical compositions comprising amorphous compounds of Formula (I) or amorphous compounds of Formula (I) salts for treatment of psychiatric disorders such as schizophrenia, including Treatment Resistant Schizophrenia (TRS).