- Synthesis of bengamide E analogues and their cytotoxic activity
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A series of bengamide E analogues were prepared from the corresponding polyketide chain and amino acids via amide coupling reactions. Opening of the polyketide chain lactone ring with α-aminolactams was successfully achieved under microwave irradiation in the presence of sodium 2-ethyl hexanoate. A cytotoxic activity evaluation against a panel of cancer cell lines (KB, HepG-2, Lu-1, MCF-7, HL-60 and Hela) indicated that the 2′R analogues were generally more cytotoxic than the 2′S analogues. Additionally, several analogues exhibited selective inhibition against various cancer cell lines: compounds 32a and 32b selectively inhibited MCF-7 cells, while 33b and 35b were more sensitive toward Lu-1 and HepG-2, respectively. Notably, some of the synthetic analogues possess cytotoxic activities with IC50 values less than 1?μM.
- Phi, Thi Dao,Mai, Huong Doan Thi,Tran, Van Hieu,Vu, Van Loi,Truong, Bich Ngan,Tran, Tuan Anh,Chau, Van Minh,Pham, Van Cuong
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p. 1830 - 1833
(2017/04/21)
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- Cgrp Receptor Antagonists
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Compounds of Formula I: and Formula II: (where variables R1, R2, R3, R4, A, B, D, G, J, Q, T, W, X and Y are as defined herein) useful as antagonists of CGRP receptors and useful in the treatment or pr
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Page/Page column 30-31
(2008/06/13)
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