Mansouramycins E-G, Cytotoxic Isoquinolinequinones from Marine Streptomycetes.
Mar Drugs
; 19(12)2021 Dec 20.
Article
em En
| MEDLINE
| ID: mdl-34940714
ABSTRACT
Chemical investigation of the ethyl acetate extract from the marine-derived Streptomyces sp. isolate B1848 resulted in three new isoquinolinequinone derivatives, the mansouramycins E-G (1a-3a), in addition to the previously reported mansouramycins A (5) and D (6). Their structures were elucidated by computer-assisted interpretation of 1D and 2D NMR spectra, high-resolution mass spectrometry, and by comparison with related compounds. Cytotoxicity profiling of the mansouramycins in a panel of up to 36 tumor cell lines indicated a significant cytotoxicity and good tumor selectivity for mansouramycin F (2a), while the activity profile of E (1a) was less attractive.
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MEDLINE
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Humans
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En
Ano de publicação:
2021
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Article