- Beta-[1-Phenyl-5-bis(beta-chloroethyl)-amino-benzimidazolyl-(2)]-DL-alanine (ZIMET 3164): an immunosuppressant without marked anti-cancer effect. Güttner, J., Gutsche, W., Zchiesche, W., Wohlrabe, K., Jungstand, W., Ozegowski, W., Krebs, D., Röppnack, G. Agents Actions (1979)