DaKang Pharmaceuticals is located in Shenyang City of Liaoning Province, P.R.China. It was founded in 2005 and dedicates itself to custom synthesis, research and development of new drugs and preparation of active pharmaceutical intermediates. Under the idea of "Innovation is the first productive force", it has been developing rapidly in recent two years. Up to now, we have developed more than fifty drugs and intermediates including argatroban, voglibose, metolazone, celiprolol, trazodone, organoboroic acid, trifluoromethyl- benzene, pyridine derivatives and some carbohydrates. We h