Polyene pigments from fruit-bodies of boletus laetissimus and B. rufo-aureus (basidiomycetes).
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.
Kahner
Lydia
L
Institut für Organische Chemie der Universität, Karlstrasse 23, 80333, Munich, Germany
Dasenbrock
Johannes
J
Spiteller
Peter
P
Steglich
Wolfgang
W
Marumoto
Ryuji
R
Spiteller
Michael
M