title: Polyene pigments from fruit-bodies of boletus laetissimus and B. rufo-aureus (basidiomycetes).
abstract: From fruit-bodies of the Japanese mushroom Boletus laetissimus two polyene pigments boletocrocin A and B were isolated and their structures determined by spectroscopic methods. The compounds represent diamides of hexadecaheptaenedioic acid with isoleucine and either aspartic acid or asparagine. The L-configuration of the amino acids was established after acid hydrolysis. The structures of five structurally related minor pigments were elucidated by LC-ESIMS.
authors.affiliation: Institut für Organische Chemie der Universität, Karlstrasse 23, 80333, Munich, Germany
authors.forename: Lydia
authors.initials: L
authors.lastname: Kahner
authors.forename: Johannes
authors.initials: J
authors.lastname: Dasenbrock
authors.forename: Peter
authors.initials: P
authors.lastname: Spiteller
authors.forename: Wolfgang
authors.initials: W
authors.lastname: Steglich
authors.forename: Ryuji
authors.initials: R
authors.lastname: Marumoto
authors.forename: Michael
authors.initials: M
authors.lastname: Spiteller