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Gombamide A, a cyclic thiopeptide from the sponge Clathria gombawuiensis.
A new peptide, gombamide A (1), was isolated from the marine sponge Clathria gombawuiensis, collected from Korean waters. On the basis of the results of combined spectroscopic analyses, the structureExpand
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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. On the basis of the combined spectroscopicExpand
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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 ofExpand
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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, theExpand
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Additional sesterterpenes and a nortriterpene saponin from the sponge Clathria gombawuiensis.
Three new terpene metabolites (1-3) were isolated from the marine sponge Clathria gombawuiensis collected from Korean waters. On the basis of the results of combined spectroscopic analyses, theExpand
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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 1Expand
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Dictyoneolone, a B/C ring juncture-defused steroid from a Dictyonella sp. sponge
Abstract Dictyoneolone ( 1 ), a new secosteroid was isolated from a Dictyonella sp. sponge collected from Gageo-do, Korea. Based upon the results of combined spectroscopic analyses, the structure ofExpand
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A New Sesterterpene from the Korean Sarcotragus sp. Sponge
Sarcotragin C (1), a new sesterterpene metabolite was isolated from a Sarcotragus sp. sponge collected from Chuja Island, Korea. On the basis of the combined spectroscopic analyses, the structure ofExpand
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nonG, a constituent of the nonactin biosynthetic gene cluster, regulates nocardamine synthesis in Streptomyces albus J1074.
Many factors regulate the expression of specialised secondary metabolite biosynthetic gene clusters, which have been recognised as important for the discovery of novel microbial natural products. AExpand
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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.