Yoko Kato

The structure of benthocyanin A. A new free radical scavenger of microbial origin

Abstract Benthocyanin A was isolated as a potent radical scavenger from Streptomyces prunicolor . It possesses an unprecedented structure consisting of a highly conjugated furophenazine ring and a geranyl side chain as shown in Figure 1.

Trikentramine, an unusual pyrrole derivative from the sponge trikentrion loeve carter

Abstract Trikentramine, an unusual pyrrole, has been isolated from the Senegalese sponge Trikentrion loeve and characterized by spectroscopic and X-ray diffraction techniques.

Replication and assembly

Molecules bearing surfaces capable of recognition phenomena can be covalently attached to each other to give self-complementary structures. Such molecules can reveal autocatalytic effects as replicators, and they are able to assemble in a variety of superstructures. Closed-shell assemblies, capable of inclusion phenomena are particularly desirable targets for synthetic and nucleation studies.