Isolation of C11 Cyclopentenones from Two Didemnid Species, Lissoclinum sp. and Diplosoma sp.
A series of new ut solution gel for cats C11 cyclopentenones 1-7 was isolated, together with four known metabolites 9/10, 12 and 13, from the extract of the didemnid ascidian Lissoclinum sp.The other didemnid ascidian Diplosoma sp.contained didemnenones 1, 2 and 5, and five known metabolites 8-12.The structures of 1-7 were elucidated by spectroscop