This invention is directed to compounds of the formula :and their pharmaceutically acceptable salts, wherein R1, R2, and R3 are as defined herein; intermediates for the synthesis of such compounds, pharmaceutical compositions containing such compounds; and methods of using such compounds in the treatment of neurological and psychological disorders. A first photo-mask pattern relating to a first line, an original second photo-mask pattern relating to a first via plug, and a third photo-mask pattern relating to a second line are provided. The central control module supplies different power supplies to each external electronic product and produces a corresponding power setting signal. In some embodiments, the graph includes one or more objects linked to one or more objects.