Christophe Len received his Ph.D. from the University of Picardie-Jules Verne (UPJV) in Amiens (France) under the supervision of Professor P. Villa in the field of carbohydrate chemistry. In 1996, he joined Doctor G. Mackenzie's group at the University of Hull (UK) as a post-doctoral fellow to work on the synthesis of nucleoside analogues. In 1997, CL became Assistant Professor at the Laboratoire des Glucides of UPJV and worked on the chemistry of antiviral nucleoside analogues specialising on those with novel glycone systems. In 2003, CL received his habilitation and was promoted to full Professor in 2004 at the University of Poitiers (France) where he was the supervisor of the team "Biomolecules: Synthesis and Molecular Organization". For 2008, CL had a secondment to the University of Technology of Compiègne - UTC (France) where he created a new scientific team called "Organic Chemistry and Alternative Technologies" with the perspective to develop research activity on green chemistry and sustainable development. In 2010, CL became full Professor at the University of Compiègne - UTC (France). Since November 2017, CL has developed his research at Chimie ParisTech (France) in the group "Catalysis, Synhesis of Biomolecules and Sustainable Development" diriged by Dr Virginie Vidal.