The present invention provides 6-substituted 2,3,4,5-tetrahydro-1H-benzo[d]azepines of Formula I as selective 5-HT 2C receptor agonists for the treatment of 5-HT 2C associated disorders including obesity, obsessive/compulsive disorder, depression, and anxiety: where: R 6 is -S-L-R 15 and other substituents are as defined in the specification.