Ircinia strobilina

Isol. from the sponge Ircinia strobilina and a Sarcotragus sp. Plant phytoalexin with antibiotic props. Oil. [a]u -4° (c, 1 in CHCI3). 255 nm (MeOH). 20E-Isomer [114761-90-9]. 

Rothberg, I., and P. Shubiak The Structure of some Antibiotics from the Sponge Ircinia strobilina. Tetrahedron Letters 769 (1975). 

Rothberg, I. and Shubiak, P. (1975) The structure of some antibiotics from the sponge Ircinia strobilina. Tetrahedron Lett., 16, 7b9-771. 

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