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Upstream product

• 22818-51-5 (2RS)-4-Ethyl-5'-formyl-2,5-dihydro-3,3'-dimethyl-5-oxo-2,2'dipyrrylmethan-4'-propionsaeure 
• 28925-80-6 (RS)-5'-Carboxy-3-ethyl-2,5-dihydro-3',4-dimethyl-5-oxo-2,2'-dipyrrylmethan-4'-propionsaeure 

Relevant academic research and scientific papers

Synthesis of rac-Stercobilin IXα with the Configuration of the Natural Product and of Some Urobilins, Half-stercobilins, and Stercobilins with Unequivocal Constitution and Configuration

For the first time a stercobilin IXα (12) with the configuration of the natural product and some half-stercobilins, e.g. 9, with the same configuration were synthesized.In addition some bile pigments of the urobilin- half-stercobilin and stercobilin type with determined configuration were prepared.