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B2 (2E/Z, 4E) N-Isobutyl 3-methyl-11-(2-trifluoromethyl-4-quinolinyloxy)undeca-2,4-dienamide Starting from 2-trifluoromethyl-4-chloroquinoline and 1,7-heptanediol. Ethyl trifluoroacetoacetate (3.7 g) and aniline (1.8 ml) were reacted together in polyphosphoric acid according to Joullie et al, J. Med. Chem., 16, 134 (1973), to give 2-trifluoromethyl-4-hydroxyquinoline (1.8 g).