Biosynthesis and transformation of homoanatoxin-a in the cyanobacterium Raphidiopsis mediterranea skuja and structures of three new homologues

Michio Namikoshi, Tomokazu Murakami, Takeshi Fujiwara, Hiroshi Nagai, Takushi Niki, Emiko Harigaya, Mariyo F. Watanabe, Taiko Oda, Junko Yamada, Shigeo Tsujimura