Cytotoxic Sesquiterpenoid Quinones and Quinols, and an 11-Membered Heterocycle, Kauamide, from the Hawaiian Marine Sponge Dactylospongia elegans.
Mar Drugs
; 17(7)2019 Jul 19.
Article
em En
| MEDLINE
| ID: mdl-31331110
ABSTRACT
Several known sesquiterpenoid quinones and quinols (1-9), and kauamide (10), a new polyketide-peptide containing an 11-membered heterocycle, were isolated from the extracts of the Hawaiian marine sponge Dactylospongia elegans. The planar structure of 10 was determined from spectroscopic analyses, and its relative and absolute configurations were established from density functional theory (DFT) calculations of the GIAO NMR shielding tensors, and advanced Marfey's analysis of the N-MeLeu residue, respectively. Compounds 1 and 3 showed moderate inhibition of ß-secretase 1 (BACE1), whereas 1-9 exhibited moderate to potent inhibition of growth of human glioma (U251) cells. Compounds 1-2 and 4-7 were also active against human pancreatic carcinoma (Panc-1) cells.
Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Poríferos
/
Sesquiterpenos
/
Inibidores Enzimáticos
/
Antineoplásicos
Limite:
Animals
/
Humans
País/Região como assunto:
America do norte
Idioma:
En
Revista:
Mar Drugs
Assunto da revista:
BIOLOGIA
/
FARMACOLOGIA
Ano de publicação:
2019
Tipo de documento:
Article
País de afiliação:
Estados Unidos