Fun Hoong-Kun, Chantrapromma Suchada, Prawat Uma, Boonnak Nawong, Razak Ibrahim Abdul
Acta Crystallogr Sect E Struct Rep Online. 2012 Apr 1;68(Pt 4):o1072-3. doi: 10.1107/S1600536812010483. Epub 2012 Mar 17.
7-oxo-3-phenyl-2,6-dioxabicyclo-[3.3.1]nonan-4-yl acetate), C(15)H(16)O(5), is a styryllactone derivative which was isolated from Goniothalamus macrophyllus. The mol-ecule has two fused rings consisting of a tetra-hydro-2H-pyran and a lactone ring, with the benzene ring and the acetyl group attached to the tetra-hydro-2H-pyran ring. The tetra-hydro-2H-pyran ring is in a standard chair conformation, whereas the lactone ring is in an envelope conformation. In the crystal, mol-ecules are linked by weak C-H⋯O inter-actions into sheets parallel to the ac plane. Weak C-H⋯π inter-actions are also observed.
7-氧代-3-苯基-2,6-二氧杂双环-[3.3.1]壬烷-4-基乙酸酯，化学式为C(15)H(16)O(5)，是一种从大叶哥纳香中分离出的苯乙烯内酯衍生物。该分子有两个稠合环，由一个四氢-2H-吡喃环和一个内酯环组成，苯环和乙酰基连接在四氢-2H-吡喃环上。四氢-2H-吡喃环呈标准椅式构象，而内酯环呈信封式构象。在晶体中，分子通过弱C-H⋯O相互作用连接成平行于ac平面的片层。还观察到弱C-H⋯π相互作用。
