In 1993, we founded CHESS as a service provider conducting exclusive custom research projects mainly for the Pharmaceutical Industry. Our experience in this field adds up to more than 30 man-years and covers a wide range of modern Organic Chemistry. Since 1997, we expanded our business to the synthesis of fine chemicals. Our focus lies on building blocks mainly for use in medicinal chemistry. The very most of these compounds are synthesised in our laboratories in Germany. On the one hand, we are specialised in derivatives of substructures such as Piperazine, Piperidine and Pyrrolidine. On the other hand, one can also find