Hippospongia metachromia

Luibrand RT, Erdman TR, Vollmer JJ, Scheuer PJ, Finer J, Clardy J (1979) Ilimaquinone a sesquit-erpenoid quinone from a marine sponge (Hippospongia metachromia).Tetrahedron 35 609-612 Moore BS (2005) Biosynthesis of marine natural products microorganisms (Part A). Nat Prod Rep 22 580-593... 

Hippospongia metachromia 1 7 Orange crystals, mp 80-82°C (alo -11° (CHCI3) Degradation... 

Shen, Y.-C., Chen, C., and Kuo, Y. (2001b) New sesquiterpene hydroquinones from a Taiwanese marine sponge, Hippospongia metachromia. J. Nat. Prod., 64, 801-803. 

Sulfircin (369), an antifungal sesterterpene sulfate was isolated as the iV,iV-dimethylguanidinium salt from a deepwater Ircinia species and its structure was determined by X-ray analysis [324]. Two sesterterpene sulfates, hipposulfates A (370) and B (371), were isolated from Hippospongia cf. metachromia from Okinawa and their structures were elucidated by interpretation of spectroscopic data. Both compounds possess an enolsulfate functionality [325]. 

Ishibashi, M., Ohizumi, Y, Cheng, J.F., Nakamura, H., Hirata, Y, Sasaki, T, and Kobayashi, J. (1988) Metachromins A and B, novel antineoplastic sesquiterpenoids from the Okinawan sponge Hippospongia cf metachromia. J. Org. Chem., 53, 2855—2858,... 

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