Fexofenadine : 1 4-(cyclopropyl carbonyl)-, -dimethyl phenyl acetic acid 162096-54-0 2 4-bromo-1, 1-dimethyl benzene acetic acid methyl ester 3 Ethyl-4-(4-chloro-1-oxo-butyl)-, -dimethyl benzene acetate 154477-54-0 4 Ethyl-4-4-[4-(hydroxy diphenyl methyl)-1-piperidinyl]-1-oxo-butyl-, -dimethyl benzene acetate HCl76811-96-6 169280-33-5 5 Methyl isonipecotate 6 Methyl-[4-(4-chloro-1-oxo-butyl)]-, -dimethyl phenyl acetate 154477-54-0 7 , -dimethyl phenyl acetic acid 826-55-1 8 , -dimethyl-4-[1-hydroxy-4-[4-(hydroxy diphenyl methyl )-1-piperidinyl] butyl] benzene acetic acid 9 , -dimethyl-4-[1-oxo-4-[4-(hydroxy diphenyl methyl)-1-piperidinyl] butyl] phenyl methyl acetate 10 , -dimethyl-4-[1-oxo-4-[4-hydroxy phenyl methyl)-1-piperidinyl] butyl] phenyl methyl acetate 11 , -dimethyl-4-[4-[4-(hydroxy diphenyl methyl)-1-piperidinyl]-1-oxo-butyl] phenyl acetic acid methyl ester HCl169280-33-5 12 4-(4-chloro-1-oxo-butyl)-2-2-dimethyl phenyl acetic acid 13 4-(4-chloro-1-oxo-butyl)-2-2-dimethyl phenyl acetic acid methyl ester 14 Ethyl-4-pyridine carboxylate 157-45-2 15 Piperidine-4-carboxylic acid 498-94-2 16 Ethyl-4-piperidine carboxylate 1126-09-6