Amines III and protected amines IV where X is CH2CH2, Y is a bond and Z is a benzene ring may be prepared according to the routes and procedures described in U.S. Pat. No. 5,849,918; EP 107095; U.S. Pat. No. 4,692,522; Tamura; Jackson; Armstrong; Schoen; Robl; Watthey; Parsons; U.S. Pat. No. 5,206,235.