Nov-Dec 1989 Synthesis and Identification of 4-Methyl-/V-(4№l,2,4-triazol-4-yl)-2-benzothiazolamine , an Impurity in the Synthesis of Tricyclazole Barry A. Dreikorn and Paul Unger Lilly Research Laboratories, A Division of Eli Lilly and Company, PO Box 708, Greenfield, Indiana 46140 Received May 11, 1989 The synthesis of 4-methyl-A44ff-l,2,4-triazol-4-yl)-2-benzothiazolamine, 4, a by-product in the synthesis of tricyclazole, 1, by oxidative cyclization of the corresponding ...
