Dg. Batt et al., IMMUNOSUPPRESSIVE STRUCTURE-ACTIVITY-RELATIONSHIPS OF BREQUINAR AND RELATED CINCHONINIC ACID-DERIVATIVES, Bioorganic & medicinal chemistry letters, 5(14), 1995, pp. 1549-1554
The immunosuppressive structure-activity relationships of substituted
cinchoninic acid derivatives related to Brequinar were explored. Activ
ities as inhibitors of dihydroorotate dehydrogenase and the mixed lymp
hocyte reaction were related to benzo-ring substitution, replacement o
f the benzo-ring by heterocycles, and variation in the 2-biphenyl, 3-m
ethyl, and 4-carboxy groups.