Caldwell ST, Farrugia LJ, Hewage SG, Kryvokhyzha N, Rotello VM, Cooke G. Model systems for flavoenzyme activity: an investigation of the role functionality attached to the C(7) position of the flavin unit has on redox and molecular recognition properties. Chem Commun (Camb). 2009 Mar 21; (11):1350-2.