6-[(4-cyanophenyl)-(E)-ethenyl]-3,4-dihydro-1-oxo-2(1H)-isoquinolineacetic acid 1,1-dimethylethyl ester

[6-(4-Cyano-phenylethynyl)-1-oxo-3,4-dihydro-1H-isoquinolin-2-yl]-acetic acid tert-butyl ester

[6-(3-Aminomethyl-benzyloxy)-1-oxo-3,4-dihydro-1H-isoquinolin-2-yl]-acetic acid tert-butyl ester

[6-(4-Aminomethyl-benzyloxy)-1-oxo-3,4-dihydro-1H-isoquinolin-2-yl]-acetic acid tert-butyl ester

{6-[2-(4-Cyano-phenyl)-ethoxy]-1-oxo-3,4-dihydro-1H-isoquinolin-2-yl}-acetic acid tert-butyl ester