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Gombamide A, a cyclic thiopeptide from the sponge Clathria gombawuiensis.

The new peptide, gombamide A, was isolated from the marine sponge Clathria gombawuiensis and exhibited weak cytotoxicity against A549 and K562 cell lines as well as moderate inhibitory activity against Na(+)/K(+)-ATPase.
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Meroterpenoids from a Tropical Dysidea sp. Sponge.

Six new meroterpenoids (1-6), along with arenarol (7), a known rearranged drimane sesquiterpene hydroquinone, were isolated from a Dysidea sp. sponge collected from the Federated States of…
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Gombaspiroketals A-C, sesterterpenes from the sponge Clathria gombawuiensis.

Gombaspiroketals A-C (1-3), tetracyclic sesterterpenes of a novel skeletal class, were isolated from the Korean marine sponge Clathria gombawuiensis and exhibited moderate cytotoxicities and antibacterial activities.
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nonG, a constituent of the nonactin biosynthetic gene cluster, regulates nocardamine synthesis in Streptomyces albus J1074.

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Additional sesterterpenes and a nortriterpene saponin from the sponge Clathria gombawuiensis.

Three new terpene metabolites were isolated from the marine sponge Clathria gombawuiensis collected from Korean waters and exhibited moderate cytotoxicity against A549 and K562 cell lines, and compound 3 showed antibacterial activity.
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Callyazepin and (3R)-Methylazacyclodecane, Nitrogenous Macrocycles from a Callyspongia sp. Sponge.

Callyazepin (1) and (3R)-methylazacyclodecane (2), nitrogenous macrocycles, were isolated from a tropical Callyspongia sp. sponge. The combined spectroscopic analyses revealed that the structure of 1…
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Polyoxygenated Steroids from the Sponge Clathria gombawuiensis.

Six new polyoxygenated steroids (1-6) along with clathriol (7) were isolated from the Korean marine sponge Clathria gombawuiensis. Based upon the results of combined spectroscopic analyses, the…
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Dictyoneolone, a B/C ring juncture-defused steroid from a Dictyonella sp. sponge

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A New Sesterterpene from the Korean Sarcotragus sp. Sponge

The structure of this compound was determined to be a linear norsesterterpene containing a leucine-derived γ-lactam moiety and exhibited moderate cytotoxicity against K562 and A549 cell-lines.
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Gombaspiroketals A—C, Sesterterpenes from the Sponge Clathria gombawuiensis.

Gombaspiroketals A (Ib), B (II), and C (Ia) are isolated as a new skeletal class of tetracyclic sesterterpenes from the marine title sponge.
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