期刊
ORGANIC LETTERS
卷 20, 期 2, 页码 417-420出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.orglett.7b03716
关键词
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资金
- Natural Science Foundation of China (NSFC) [31330009, 81502913]
- NSFC-Shandong Joint Fund for Marine Science Research Centers [U1606403, U1706213]
- Scientific and Technological Innovation project from QNLMST [2015ASTP-ES14]
- Taishan Scholar Project from Shandong Province
A novel ureidobromophenol, rhodomelin A (1)4 was characterized from Rhodomela confervoides. Its structure was elucidated by spectroscopic analysis. Both enantiomers of 1 were synthesized using a convergent strategy starting from D/L-pyroglutamic acids, respectively, allowing-assignment of the R-configuration for the naturally occurring isomer by chiral HPLC analysis. Rhodomelin A represents the first example of a naturally occurring ureidopyrrolidone alkaloid incorporating a gamma-arninobutyric acid unit. The scavenging activity of I toward DPPH (1,1-diphenyl-2-picrylhydrazyl) and ABTS (2,2'-azinObis(3-ethylbenzothiazoline-6-sulfonate)) radicals was assayed.
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