Two related solid-phase synthesis routes have been developed allowing the synthesis of 3- amino-3′-carboxy substituted tetrahydrocarbazole derivatives. Diversity can be introduced at the amino and carboxy functionalities and at the nitrogen and the aromatic ring of the tetrahydrocarbazole moiety. Both routes rely on Fmoc-protected 1-amino-4- oxocyclohexanone carboxylic acid as central core element. Derivatization of the carboxy ...