2-((2R,6S)-6-tert-Butyl-tetrahydro-pyran-2-yloxy)-propionic acid ethyl ester

geranyl lactamide

2.3-Dimethyl-weinsaeure-diethylester

2-(2-tert-Butoxycarbonylamino-acetoxy)-propionic acid ethyl ester

2-Methylene-pentanedioic acid bis-(1-ethoxycarbonyl-ethyl) ester