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New methods for the synthesis of the aminomethyldipyrrolylmethane and the aminomethyl-tripyrrane, which are resulting from formal head to tail condensation of porphobilinogen are de­ scribed. Porphobilinogen was used as base material in these procedures. The aminomethyl group of porphobilinogen reacts as an alkylating agent with several amines as well as with porpho-bilinogen-lactam. The condensation of porphobilinogen with its lactam gave the dipyrrolylmethane-lactam, which afforded after hydrolysis the desired aminomethyldipyrrolylmethane. The conden­ sation of the latter with porphobilinogen-lactam gave the lactam of the aminomethyltripyrrane, which was then hydrolysed to the free aminomethyltripyrrane

zeitschrift für naturforschung c

Darstellung von Aminomethylpyrrolylmethanen aus Porphobilinogen Chemistry of Porphobilinogen Preparation of Aminomethylpyrrolylmethanes from Porphobilinogen