The condensation of bis(methylthio)methylene-malononitrile with some aminoazoles, namely 2-aminobenzimidazole, 2-aminobenzothiazole, 5-aminotetrazole monohydrate, 2-amino-5-ethylthiadiazole, 2-aminothiazole, 2-phenyl-4-aminothiazole and/or creatinine resulted in the formation of bridgehead nitrogen compounds. The structures of these compounds were established by analytical and spectral data.