Antonio N. Aliano," Thomas E. Allen,* Desmond J. ~ rown , ~ " William B. CowdeqB Geofrey W. Grigg/ Diana ~avulak* and Shu-Bin LanB ... A Division of Molecular Biology, CSIRO, PO Box 184, North Ryde, NSW 2113. John Curtin School of Medical Research, PO Box 334, Canberra, ACT . 2601. Author to whom correspondence should be addressed. ... Abstract Syntheses are described for N,N-dimethyl-2-[5'-(pyridin-2-yl)-1',3',4'-thiadiazol-2'-ylthio]ethylamine; ...