Meinwald J, Jones T H, Eisner T, Hicks K
Proc Natl Acad Sci U S A. 1977 Jun;74(6):2189-93. doi: 10.1073/pnas.74.6.2189.
The defensive secretion of larvae of the chrysomelid beetle Plagiodera versicolora contains two unstable, volatile methylcyclopentanoid terpenes: a dialdehyde (chrysomelidial) isomeric with dolichodial and anisomorphal, and a closely related enol lactone (plagiolactone). Chrysomelidial and plagiolactone are shown to have structures III and IV on the basis of a detailed analysis of their spectra, coupled with chemical transformations to products of known structure.
一种二醛（葡萄叶甲醛），与长链二醛和异长链二醛同分异构，以及一种与之密切相关的烯醇内酯（葡萄叶甲内酯）。基于对它们光谱的详细分析，并结合化学转化为已知结构的产物，葡萄叶甲醛和葡萄叶甲内酯被证明具有结构III和IV。
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