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(4aSR,10aRS)-1,2,3,4,4a,10a-Hexahydro-6,7-dimeth­oxy-1,1,4a-trimethyl­phenanthrene-9,10-dione

✍ Scribed by Xiong, Yi ;Sun, Cui-Rong ;Hu, Mao-Lin ;Liu, Miao-Chang


Publisher
International Union of Crystallography
Year
2005
Tongue
English
Weight
154 KB
Volume
61
Category
Article
ISSN
1600-5368

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✦ Synopsis


The title diterpene, C 19 H 24 O 4 , which was totally synthesized from geranic acid, has the tricyclic backbone of a podocarpic diterpene. The skeleton does not show a planar configuration, but is distinctly bent.


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4-Chloro-2-{(E)-[(1R,4aS,10aR)-7-isoprop
✍ Rao, Xiao-Ping ;Song, Zhan-Qian ;Gong, Yun ;Yao, Xu-Jie ;Shang, Shi-Bin 📂 Article 📅 2006 🏛 International Union of Crystallography 🌐 English ⚖ 156 KB

The title compound, C 27 H 34 ClNO, was synthesized by a direct condensation reaction. The molecule has three chiral centres, which exhibit R, S and R absolute configurations, respectively. Two six-membered rings with different conformations coexist in the structure and they form a trans ring juncti