Disclosed are compounds of Formula (I): (I) or a salt thereof, wherein: X is —CH2— or —C(O)—; R1 is —OH or —OP(O)(OH)2; L is a bond, —CH2—, or —C(O)—; R2 is n-C6-8 alkyl; each R3 is independently selected from Cl and —CH3; and n is zero, 1, or 2; provided that if X is —CH2—, then L is —CH2— or —C(O)—. Also disclosed are methods of using such compounds as selective agonists for G protein coupled receptor S1P1, and pharmaceutical compositions comprising such compounds. These compounds are useful in treating, preventing, or slowing the progression of diseases or disorders in a variety of therapeutic areas, such as autoimmune diseases and vascular disease.