A compound having formula: or a pharmaceutically acceptable salt thereof, wherein: Ar is a 5- to 10-membered aromatic or heteroaromatic ring, optionally substituted with from one to three R 3; L 1 is selected from the group consisting of a bond, C 1-6 alkylene, and C 1-6 heteroalkylene; L 2 is selected from the group consisting of a bond, C 1-6 alkylene, and C 1-6 heteroalkylene; Y is CO 2 H or selected from the group consisting of tetrazolyl and tetrazolonyl, wherein the tetrazolyl or tetrazolonyl is optionally substituted with R, wherein each R group is independently selected from the group consisting of H, C 1 -C 6 alkyl, C 1 -C 6 haloalkyl, C 1 -C 6 hydroxyalkyl, C 1 -C 6 alkoxy, and C 1 -C 4 alkyl-O-C 1 -C 4 alkyl; each R 1 and each R 2a is independently selected from the group consisting of halogen, cyano, C 1-6 alkyl, C 1-6 alkoxy, C 1-6 haloalkyl, C 1-6 haloalkoxy, C 3-6 cycloalkyl, and C 2-6 alkenyl, wherein the alkyl, cycloalkyl, and alkenyl portions are optionally substituted with from one to three members selected from fluoro, OH, CN, C 1-3 alkyl, C 1-3 haloalkyl, and C 1-3 alkoxy; R 2b is selected from the group consisting of H, halogen, cyano, C 1-6 alkyl, C 1-6 alkoxy, C 3-6 cycloalkyl, and C 2-6 alkenyl, wherein the alkyl, cycloalkyl, and alkenyl portions are optionally substituted with from one to three members selected from fluoro, CN, C 1-3 alkyl, C 1-3 haloalkyl, and C 1-3 alkoxy; or optionally one R 2a and R 2b, when on adjacent vertices of a phenyl ring, may be joined together to form a 5- or 6-membered heterocycloalkyl ring having one or two ring vertices independently selected from O, N, and S, wherein said heterocycloalkyl ring is optionally substituted with from one to three members selected from fluoro and C 1-3 alkyl; each R 3 is independently selected from the group consisting of halogen, cyano, C 1-6 alkyl, C 1-6 alkoxy, C 1-6 haloalkyl, C 1-6 haloalkoxy, C 3-6 cycloalkyl, and C 2-6 alkenyl; the subscript m is an integer of from 0 to 4; and the subscript n is an integer of from 0 to 3. Ar is a 5- to 10-membered aromatic or heteroaromatic ring, optionally substituted with from one to three R 3; L 1 is selected from the group consisting of a bond, C 1-6 alkylene, and C 1-6 heteroalkylene; L 2 is selected from the group consisting of a bond, C 1-6 alkylene, and C 1-6 heteroalkylene; Y is CO 2 H or selected from the group consisting of tetrazolyl and tetrazolonyl, wherein the tetrazolyl or tetrazolonyl is optionally substituted with R, wherein each R group is independently selected from the group consisting of H, C 1 -C 6 alkyl, C 1 -C 6 haloalkyl, C 1 -C 6 hydroxyalkyl, C 1 -C 6 alkoxy, and C 1 -C 4 alkyl-O-C 1 -C 4 alkyl; each R 1 and each R 2a is independently selected from the group consisting of halogen, cyano, C 1-6 alkyl, C 1-6 alkoxy, C 1-6 haloalkyl, C 1-6 haloalkoxy, C 3-6 cycloalkyl, and C 2-6 alkenyl, wherein the alkyl, cycloalkyl, and alkenyl portions are optionally substituted with from one to three members selected from fluoro, OH, CN, C 1-3 alkyl, C 1-3 haloalkyl, and C 1-3 alkoxy; R 2b is selected from the group consisting of H, halogen, cyano, C 1-6 alkyl, C 1-6 alkoxy, C 3-6 cycloalkyl, and C 2-6 alkenyl, wherein the alkyl, cycloalkyl, and alkenyl portions are optionally substituted with from one to three members selected from fluoro, CN, C 1-3 alkyl, C 1-3 haloalkyl, and C 1-3 alkoxy; or optionally one R 2a and R 2b, when on adjacent vertices of a phenyl ring, may be joined together to form a 5- or 6-membered heterocycloalkyl ring having one or two ring vertices independently selected from O, N, and S, wherein said heterocycloalkyl ring is optionally substituted with from one to three members selected from fluoro and C 1-3 alkyl; each R 3 is independently selected from the group consisting of halogen, cyano, C 1-6 alkyl, C 1-6 alkoxy, C 1-6 haloalkyl, C 1-6 haloalkoxy, C 3-6 cycloalkyl, and C 2-6 alkenyl; the subscript m is an integer of from 0 to 4; and the subscript n is an integer of from 0 to 3.