New merosesquiterpenes from the Vietnamese sponge Hippospongia fistulosa and their cytotoxic activity

Autor: Dan Thi Thuy Hang, Vu Kim Thu, Pham Hai Yen, Bui Huu Tai, Phan Van Kiem, Do Thi Trang, Nguyen Xuan Nhiem, Tran Hong Quang
Rok vydání: 2021
Předmět:
Zdroj: Phytochemistry Letters. 44:115-119
ISSN: 1874-3900
DOI: 10.1016/j.phytol.2021.06.015
Popis: Two new merosesquiterpenes, hippomeroterpenes A and B (1 and 2), and four known compounds langconol B (3), 20-demethoxy-20-methylaminodactyloquinone D (4), smenospongidine (5), and smenospongic acid (6) were isolated from the sponge Hippospongia fistulosa. Their structures were determined by extensive analyses of HR ESI MS and NMR spectral data. At concentration of 100 μM, compounds 1-6 exhibited weak cytotoxic effects on Hep-G2, MCF-7, SK-LU-1, and SK-Mel-2 human cancer cells with percentages of dead cells ranging from 8.3 ± 0.3%–36.3 ± 1.5 %.
Databáze: OpenAIRE