Helicascolides A and B: new lactones from the marine fungus Helicascus kanaloanus.
Two new isomeric delta-lactones 2 and 3 have been isolated from the marine fungus Helicascus kanaloanus (ATCC 18591). The structures and relative configurations of these compounds were assigned primarily by nmr studies, and absolute configurations are proposed based on cd data.
Poch
G K
GK
Department of Chemistry, University of Iowa, Iowa City 52242.
Gloer
J B
JB
D001203:Ascomycota / Q000032:analysis*; D055598:Chemical Phenomena; D002621:Chemistry; D007783:Lactones / Q000032:analysis / Q000302:isolation & purification*; D009682:Magnetic Resonance Spectroscopy
D007783:Lactones; C060395:helicascolide A