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从毛叶番荔枝树皮中提取的8,14-断伽马蜡烷-7,14(27)-二烯-3,21-二酮-8,14-断伽马蜡烷-7,14-二烯-3,21-二酮（1.5/0.5）

8,14-Secogammacera-7,14(27)-diene-3,21-dione-8,14-secogammacera-7,14-diene-3,21-dione (1.5/0.5) from the bark of Lansium domesticum Corr.

作者信息

Tjokronegero Roekmi-Ati, Mayanti Tri, Supratman Unang, Mukhtar Mat Ropi, Ng Seik Weng

出版信息

Acta Crystallogr Sect E Struct Rep Online. 2009 May 29;65(Pt 6):o1448. doi: 10.1107/S1600536809019710.

DOI:10.1107/S1600536809019710
PMID:21583286
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC2969586/
Abstract

The components of the title cocrystal, 1.5C(30)H(40)O(2)·0.5C(30)H(40)O(2), each have two tetra-hydro-deca-lin-type fused rings connected through an ethyl-ene fragment [R-CH(2)-CH(2)-R' torsion angles: 158.1 (7) ° in the major component and 157.5 (6)° in the minor component]. The structure is a non-merohedral twin, with a minor twin component of 26%. The exocyclic double-bonded C atom of the major component of the cocrystal is disordered over two sites of equal occupancy.

摘要

标题共晶体的组分，即1.5C(30)H(40)O(2)·0.5C(30)H(40)O(2)，每个都有两个通过乙烯片段相连的四氢十氢化萘型稠环[R-CH(2)-CH(2)-R'扭转角：主要组分中为158.1 (7)°，次要组分中为157.5 (6)°]。该结构为非等轴孪晶，次要孪晶组分为26%。共晶体主要组分的环外双键C原子在两个占有率相等的位置上无序分布。

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本文引用的文献

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2
A short history of SHELX.SHELX简史。
Acta Crystallogr A. 2008 Jan;64(Pt 1):112-22. doi: 10.1107/S0108767307043930. Epub 2007 Dec 21.
3
New onoceranoid triterpene constituents from Lansium domesticum.来自毛叶番荔枝的新型新角鲨烷类三萜成分。
从毛叶番荔枝树皮中提取的14-羟基-8,14-断-γ-香树脂-7-烯-3,21-二酮
Acta Crystallogr Sect E Struct Rep Online. 2010 Jun 9;66(Pt 7):o1621. doi: 10.1107/S1600536810021136.
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Antifeedant triterpenoids from the seeds and bark of Lansium domesticum cv Kokossan (Meliaceae).来自地菍（桃金娘科）种子和树皮的拒食三萜。
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J Nat Prod. 2002 Nov;65(11):1709-11. doi: 10.1021/np020239o.