[Ile8]-Oxytocin

4-(9H-fluoren-9-ylmethoxycarbonylamino)-piperidine-1,4-dicarboxylic acid mono-tert-butyl ester is a substituted piperidine derivative widely used in organic synthesis as a linker to form peptide and peptidomimetic molecules.

3,4-Dimethoxybenzamide, amide, is isolated from the solid culture of Streptoverticillium morookaense. 3,4-Dimethoxybenzamide can be used as the starting material to preparation Itopride hydrochloride.