刺鼠酸
Acanthoic Acid.
作者信息
Suwancharoen Sunisa, Tommeurd Wantanee, Phurat Chuttree, Muangsin Nongnuj, Pornpakakul Surachai
机构信息
Research Centre of Bioorganic Chemistry, Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand.
出版信息
Acta Crystallogr Sect E Struct Rep Online. 2010 Jun 5;66(Pt 7):o1531. doi: 10.1107/S1600536810019483.
THE TITLE COMPOUND [SYSTEMATIC NAME: (1R,4aR,7S,8aS,10aS)-1,4a,7-trimethyl-7-vinyl-1,2,3,4,4a,6,7,8,8a,9,10,10a-dodeca-hydro-phenanthrene-1-carb-oxy-lic acid], C(20)H(30)O(2), is a pimarane-type diterpene extracted from Croton oblongifolius. There are two independent mol-ecules in the asymmetric unit. In both of these, the six-membered rings A, B and C adopt chair, boat and half-chair conformations, respectively. Rings A and B are trans-fused. The two mol-ecules in the asymmetric unit form O-H⋯O hydrogen-bonded R(2) (2)(8) dimers. The absolute configuration was assigned on the basis of the published literature on analogous structures.
标题化合物[系统名称：(1R,4aR,7S,8aS,10aS)-1,4a,7-三甲基-7-乙烯基-1,2,3,4,4a,6,7,8,8a,9,10,10a-十二氢菲-1-羧酸]，C(20)H(30)O(2)，是一种从长圆叶巴豆中提取的海松烷型二萜。不对称单元中有两个独立分子。在这两个分子中，六元环A、B和C分别采取椅式、船式和半椅式构象。环A和B是反式稠合的。不对称单元中的两个分子形成O-H⋯O氢键连接的R(2)(2)(8)二聚体。绝对构型是根据已发表的关于类似结构的文献确定的。
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