期刊
JOURNAL OF ORGANIC CHEMISTRY
卷 73, 期 18, 页码 7011-7016出版社
AMER CHEMICAL SOC
DOI: 10.1021/jo801432t
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资金
- U.S. Anny Medical Research Program [W81XWH-06-1-0089]
The Suzuki-Miyaura cross-coupling protocol was applied to the synthesis of 1a, the C-glycoside analogue of PsA methyl ether. This marks the first construction of a C-glycoside for this class of marine natural products, thereby offering an opportunity to compare its bioactivity to the natural substances. Its activity profile resembled that of PsA (1) and PsA O-methyl ether (1b) when assayed for its anti-inflammatory activity and its ability to inhibit phagocytosis. We conclude that the intact structure is present when a pseudopterosin expresses its anti-inflammatory and phagocytosis inhibitory properties and that they are, therefore, not likely to be prodrugs. Results show that 1a is an effective binding agent toward the A(2A) and A(3) adenosine receptors, displaying IC50 values of 20 and 10 mu M, respectively.
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