SEMISYNTHETIC METHODS OF PREPARING GTX1,4 AND NEOSAXITOXIN
申请人:THE CAWTHRON INSTITUTE TRUST BOARD
公开号:US20210340153A1
公开(公告)日:2021-11-04
Semisynthetic methods of preparing neosaxitoxin from cultures of the dinoflagellates
Alexandrium pacificum
and
Gymnodinium catenatum
are described. The scalable method includes the reductive desulfonation of an unresolved mixture of gonyautoxin 1 (GTX1) and gonyautoxin 4 (GTX4) using dithiol in a buffered reaction solvent at a pH of about 7.5.