A new 9-nor-atractylodin from Atractylodes lancea and the antibacterial activity of the atractylodin derivatives
摘要:
A new compound, namely, 9-nor-atractylodin (1) and one known atractylodin (2) were isolated from the rhizomes of Atractylodes lancea. The structural modifications of atractylodin were carried out and a series of atractylodin derivatives (3-10) were obtained. The antibacterial activities of 1-10 were examined against Escherichia coli, Staphylococcus aureus, Bacillus subtilis and Candida albicans. Compounds 4 and 8, which contained the alpha, beta-unsaturated carbonyl fragment, were found to be active against E. coli and S. aureus. (C) 2011 Elsevier B.V. All rights reserved.
A straightforward synthesis of a series of naturally occurring polyacetylenes has been developed, including the montiporynes A C ells, the atractylodin, with antibiotic at and C, possessing cytotoxic activity against several human solid tumor c activity against Escherichia coli, and triynes, which display insecticidal activities, starting from the readily available 1,4-bis(trimethylsilyl)-1,3-butadiyne. (c) 2006 Elsevier Ltd. All rights reserved.
Synthesis of Naturally Occurring Acetylenes via an Alkylidene Carbenoid Rearrangement
作者:Annabelle L. K. Shi Shun、Rik R. Tykwinski
DOI:10.1021/jo034734g
日期:2003.8.1
Naturallyoccurring mosquito larvicidal acetylenes 1 and 2, and analogues 3 and 4, each containing either a 1,3-butadiynyl or a 1,3,5-hexatriynyl moiety, are synthesized via a Fritsch-Buttenberg-Wiechell rearrangement. The alkylidene carbenoid intermediate results from lithium-halogen exchange of a suitable dibromoolefin precursor, and the rearrangement is accomplished under mild conditions. Synthesis
A new 9-nor-atractylodin from Atractylodes lancea and the antibacterial activity of the atractylodin derivatives
作者:Yanjun Chen、Yuxue Wu、Hexiang Wang、Kun Gao
DOI:10.1016/j.fitote.2011.10.015
日期:2012.1
A new compound, namely, 9-nor-atractylodin (1) and one known atractylodin (2) were isolated from the rhizomes of Atractylodes lancea. The structural modifications of atractylodin were carried out and a series of atractylodin derivatives (3-10) were obtained. The antibacterial activities of 1-10 were examined against Escherichia coli, Staphylococcus aureus, Bacillus subtilis and Candida albicans. Compounds 4 and 8, which contained the alpha, beta-unsaturated carbonyl fragment, were found to be active against E. coli and S. aureus. (C) 2011 Elsevier B.V. All rights reserved.