Aaptolines A and B, Two New Quinoline Alkaloids from the Marine Sponge Aaptos aaptos

Two new quinoline alkaloids, aaptolines A and B, were isolated from the marine sponge Aaptos aaptos. Their structures were determined by HR‐ESI‐MS data, NMR analysis, and X‐ray crystallography. Structurally, aaptoline A is characterized as having a quinoline skeleton fused with a 1,4‐dioxane motif a...

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Bibliographic Details
Published in:Chemistry & biodiversity 2020-04, Vol.17 (4), p.e2000074-n/a
Main Authors: Tang, Wei‐Zhuo, Yu, Hao‐Bing, Lu, Jing‐Rong, Lin, Hou‐Wen, Sun, Fan, Wang, Shu‐Ping, Yang, Fan
Format: Article
Language:English
Subjects:
Aaptos aaptos
Alkaloids
Alkaloids - chemistry
Alkaloids - isolation & purification
Alkaloids - pharmacology
Animals
Antineoplastic Agents - chemistry
Antineoplastic Agents - isolation & purification
Antineoplastic Agents - pharmacology
Cell Line, Tumor
Cell Survival - drug effects
Crystallography
Crystallography, X-Ray
Cytotoxicity
Magnetic Resonance Spectroscopy
marine sponge
Molecular Conformation
NMR
Nuclear magnetic resonance
Porifera - chemistry
Porifera - metabolism
Quinoline
quinoline alkaloid
Quinolines - chemistry
Spectrometry, Mass, Electrospray Ionization
Toxicity
Tumor cell lines
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Summary:Two new quinoline alkaloids, aaptolines A and B, were isolated from the marine sponge Aaptos aaptos. Their structures were determined by HR‐ESI‐MS data, NMR analysis, and X‐ray crystallography. Structurally, aaptoline A is characterized as having a quinoline skeleton fused with a 1,4‐dioxane motif at the C(7)−C(8) position, whereas aaptoline B possessed an intriguing 1H‐pyrrolo[2,3‐g]quinoline moiety. The cytotoxic assay of these compounds showed no cytotoxicity towards HepG2, A549, and PC9 cancer cell lines and had IC50 values greater than 20 μm.
ISSN:1612-1872
1612-1880
DOI:10.1002/cbdv.202000074