On saponification of the N -substituted alkyl 3-pyrrolcarboxylates 7,9,12 with also a saponificable group at the nitrogen substituent, the ester group at the heterocycle reacts preferentially.doi:10.1002/jhet.5570230321Friedrich BobergKarl-Heinz GarburgKarl-Joachim G?rlichEberhard PipereitMaria RuhrJournal of Heterocyclic Chemistry
Aussteifungsglied, insbesondere fuer die obergurte von raeumlichen tragwerken od. dgl. Stiffener, or the particular for the upper belts of spatial contract works. LikeEmil Mauritz Dipl I Huennebeck