Yojironins A-D, meroterpenoids and prenylated acylphloroglucinols from Hypericum yojiroanum
Yojironins A-D, meroterpenoids and prenylated acylphloroglucinols from Hypericum yojiroanum
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DOI:
10.1016/j.tetlet.2011.04.106
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发表时间:
2011-07-13
影响因子:
1.8
通讯作者:
Kobayashi, Jun'ichi
中科院分区:
文献类型:
--
作者:
Mamemura, Takuji;Tanaka, Naonobu;Kobayashi, Jun'ichi
Two new meroterpenoids, yojironins A (1) and B (2), were isolated from the whole plants of Hypericum yojiroanum, together with two new prenylated acylphloroglucinols, yojironins C (3) and D (4). Their structures were elucidated by spectroscopic data. Yojironins A (1) and B (2) are biogenetically unique meroterpenoids, which seem to be composed of two acetate units with a 2-methylbutanoyl group and three isoprene units. Yojironin A (1) exhibited antimicrobial activity. (C) 2011 Elsevier Ltd. All rights reserved.