Journal
CHEMICAL & PHARMACEUTICAL BULLETIN
Volume 52, Issue 8, Pages 1023-1025Publisher
PHARMACEUTICAL SOC JAPAN
DOI: 10.1248/cpb.52.1023
Keywords
Cerbera manghas; Apocynaceae; cardenolide; cytotoxicity
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A new cytotoxic cardenolide glycoside, 3beta-O-(2'-O-acetyl-alpha-L-thevetosyl)-14beta-hydroxy-7-en-5beta-card-20(22)-enolide, (7,8-dehydrocerberin), together with five known cardenolides, 17beta-neriifolin, deacetyltanghinin, tanghinin, cerberin and 2'-O-acetyl-cerleaside A were isolated from the seeds of Cerbera manghas L. Their structures were elucidated by 1D- and 2D-NMR techniques as well as UV, IR and mass spectral data. 7,8-Dehydrocerberin, deacetyltanghinin and tanghinin exhibited cytotoxic activities against oral human epidermoid carcinoma (KB), human breast cancer cell (BC) and human small cells lung cancer (NCI-H187).
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