Keywords: Synthalin B.svg validSVG Skeletal formula of Synthalin B Created using http //www acdlabs com/download/chemsk html ACD/ChemSketch 10 0 Inkscape and vim Own work after cite book Sneader Walter Drug discovery a history Wiley New York 2005 276 0-471-89979-8 2009-12-15 2009-12-15 Fvasconcellos Guanidines Anti-diabetic drugs |