... a In the monkeys (n = 4, except for compound 4, n = 7), the dose was 150 μmol/kg ... Design Concept and Synthesis. ... This finding encouraged us to further explore the effect of altering the lipophilicity of the (S)-2-(2,4-dihydroxyphenyl)-4,5-dihydro-4-thiazolecarboxylic acids on their ...