1. Synthesis of geminal bis(hydroxymethyl)pyrrolidine and pyrrolizidine imino sugars Frank Schieweck,Hans-Josef Altenbach J. Chem. Soc. Perkin Trans. 1 2001 3409
7. Ring contraction of 7-chloro-3-phenyl -2H-1,2,4-benzothiadiazine Volker W. B?hnisch,Thomas L. Gilchrist,Charles W. Rees J. Chem. Soc. Perkin Trans. 1 1979 2851