Download full text in PDF Opens in a new window. Article suggestions will be shown in a dialog on return to ScienceDirect. ... Please enable JavaScript to use all the features on this page. ... The synthesis of the novel macrocyclic host 1 incorporating an isoalloxazine moiety as model for active sites of flavoenzymes is described. The complexation between oxidized and reduced flavin-host and aromatic guests is analyzed in aqueous solution. ... The synthesis of the ...