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Nagelamides Q and R, Novel Dimeric Bromopyrrole Alkaloids from Sponges Agelas sp.

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ORGANIC LETTERS
卷 11, 期 8, 页码 1785-1788

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AMER CHEMICAL SOC
DOI: 10.1021/ol900328c

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  1. Ministry of Education, Culture, Sports, Science and Technology of Japan

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Two new dimeric bromopyrrole alkaloids, nagelamides Q (1) and R (2), have been isolated from Okinawan marine sponges of the genus Agelas (SS-1134 and SS-956, respectively), and the structures and stereochemistry were elucidated from spectroscopic data. Nagelamide Q (1) is a rare dimeric bromopyrrole alkaloid possessing a pyrrolidine ring, while nagelamide R (2) is the first bromopyrrole alkaloid having an oxazoline ring. Nagelamides Q (1) and R (2) showed antimicrobial activity.

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