The present application describes compounds, including all pharmaceutically acceptable salts, prodrugs, solvates and stereoisomers thereof, according to Formula I, pharmaceutical compositions, comprising at least one compound according to Formula I and optionally at least one additional therapeutic agent and methods of treating various diseases, conditions and disorders associated with modulation of 
serotonin receptors such as, for example: metabolic diseases, which includes but is not limited to 
obesity, diabetes, diabetic complications, atherosclerosis, impared glucose tolerance and 
dyslipidemia; 
central nervous system diseases which includes but is not limited to, 
anxiety, depression, 
obsessive compulsive disorder, 
panic disorder, 
psychosis, 
schizophrenia, 
sleep disorder, sexual disorder and social 
phobias; cephalic pain; 
migraine; and gastrointestinal disorders using compounds according to Formula I