4-(3,4-Dihydro-6,7-dimethoxy-1-isochinolinyl)-3-furancarbonsaeure

1-(Aminomethyl)-5,6-dihydro-8,9-dimethoxypyrrolo<2,1-a>isochinolin-2-carbonsaeure-ethylester

1-Formyl-8,9-dimethoxypyrrolo<2,1-a>isochinolin-2-carbonsaeure-ethylester