6-[2-(tert-Butyl-diphenyl-silanyloxy)-ethyl]-3,3-dimethyl-1,2,3,4-tetrahydro-quinoline-8-sulfonic acid {(S)-1-benzothiazol-2-ylmethyl-2-[4-(2-fluoro-ethyl)-piperidin-1-yl]-2-oxo-ethyl}-amide

6-[2-(tert-Butyl-diphenyl-silanyloxy)-ethyl]-3,3-dimethyl-1,2,3,4-tetrahydro-quinoline-8-sulfonic acid

3,3-Dimethyl-2,4-dioxo-1,2,3,4-tetrahydro-quinoline-6-carboxylic acid ethyl ester

(3,3-Dimethyl-2-methylsulfanyl-3,4-dihydro-quinolin-6-yl)-acetic acid ethyl ester

(3,3-Dimethyl-2,4-dioxo-1,2,3,4-tetrahydro-quinolin-6-yl)-acetic acid ethyl ester