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Zamamidine C, 3,4-dihydro-6-hydroxy-10,11-epoxymanzamine A, and 3,4-dihydromanzamine J N-oxide, new manzamine alkaloids from sponge Amphimedon sp.
Abstract New manzamine alkaloids, zamamidine C ( 1 ), 3,4-dihydro-6-hydroxy-10,11-epoxymanzamine A ( 2 ), and 3,4-dihydromanzamine J N -oxide ( 3 ), have been isolated from an Okinawan marine spongeExpand
Dendridine A, a bis-indole alkaloid from a marine sponge Dictyodendrilla Species.
TLDR
A unique C2-symmetrical 4,4'-bis(7-hydroxy)indole alkaloid was isolated from an Okinawan marine sponge and exhibited antibacterial and antifungal activities. Expand
Hyrtimomines D and E, bisindole alkaloids from a marine sponge Hyrtios sp.
Abstract Two new alkaloids, hyrtimomines D ( 1 ) and E ( 2 ), were isolated from an Okinawan marine sponge Hyrtios sp. The structures of 1 and 2 were elucidated on the basis of spectroscopicExpand
Metachromins J and K, New Sesquiterpenoids from Marine Sponge Spongia Species
Two new cytotoxic sesquiterpenoids, metachromins J (1) and K (2), have been isolated from an Okinawan marine sponge Spongia sp. (SS-1037). The structures of 1 and 2 were elucidated on the basis ofExpand
Nitrogen-containing verticillene diterpenoids from the Taiwanese soft coral Cespitularia taeniata.
TLDR
The cytotoxicity against human oral epidermoid carcinoma and murine L1210 leukemia cell lines and antimicrobial activities of 1- 8 and 11 were tested and evaluated and a biogenetic pathway for these novel diterpene alkaloids was proposed. Expand
Brianodins A-D, briarane-type diterpenoids from soft coral Pachyclavularia sp.
Four new briarane-type diterpenoids, brianodins A-D ( 1- 4), were isolated from a soft coral, Pachyclavularia sp., and the structures and relative stereochemistry of 1- 4 were elucidated on the basisExpand
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