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Diterpenoid Alkaloids (diterpenoid + alkaloid)
Kinds of Diterpenoid Alkaloids Selected AbstractsNew Diterpenoid Alkaloid from Spiraea formosana.CHEMINFORM, Issue 50 2002Tian-Shung Wu No abstract is available for this article. [source] New Diterpenoid Alkaloids from Aconitum liangshanicumHELVETICA CHIMICA ACTA, Issue 4 2010Zhong-Tang Zhang Abstract One new C19 -diterpenoid alkaloid, named liangshantine (1), and three new C20 -diterpenoid alkaloids, liangshansines A,C (2,4, resp.), as well as eight known compounds, were isolated from the roots of Aconitum liangshanicum. The structures of these new alkaloids were elucidated by spectroscopic methods. [source] New Diterpenoid Alkaloids from Aconitum recemulosumFranch.HELVETICA CHIMICA ACTA, Issue 9 2009Yong-Hui Ge Abstract Two new diterpenoid alkaloids, racemulosines A (1) and B (2), were isolated from the roots of Aconitum racemulosumFranch. The structures of the new alkaloids were elucidated by analysis of physical and spectroscopic data, and the structure of 1 was further confirmed by a single-crystal X-ray diffraction analysis. Furthermore, compound 1, at 2.25,10,4,mol/l, showed moderate activity against platelet aggregation induced by PAF (platelet-activation factor). [source] Three New Lycoctonine-Type C19 -Diterpenoid Alkaloids from Delphinium giraldiiCHEMINFORM, Issue 21 2004Xian-Li Zhou Abstract For Abstract see ChemInform Abstract in Full Text. [source] New Diterpenoid Alkaloids from Aconitum liangshanicumHELVETICA CHIMICA ACTA, Issue 4 2010Zhong-Tang Zhang Abstract One new C19 -diterpenoid alkaloid, named liangshantine (1), and three new C20 -diterpenoid alkaloids, liangshansines A,C (2,4, resp.), as well as eight known compounds, were isolated from the roots of Aconitum liangshanicum. The structures of these new alkaloids were elucidated by spectroscopic methods. [source] New Diterpenoid Alkaloids from Aconitum recemulosumFranch.HELVETICA CHIMICA ACTA, Issue 9 2009Yong-Hui Ge Abstract Two new diterpenoid alkaloids, racemulosines A (1) and B (2), were isolated from the roots of Aconitum racemulosumFranch. The structures of the new alkaloids were elucidated by analysis of physical and spectroscopic data, and the structure of 1 was further confirmed by a single-crystal X-ray diffraction analysis. Furthermore, compound 1, at 2.25,10,4,mol/l, showed moderate activity against platelet aggregation induced by PAF (platelet-activation factor). [source] Two New Diterpenoid Lactams from Spiraea japonica var. ovalifoliaHELVETICA CHIMICA ACTA, Issue 6 2009Hai-Yang Liu Abstract Two new diterpenoid alkaloids, spiramilactams A (1) and B (2), were isolated from the basic fraction of a MeOH extract of whole plants of Spiraea japonica var. ovalifolia. Their structures were established on the basis of extensive spectroscopic and mass-spectrometric analyses. [source] Asymmetric Synthetic Access to the Hetisine Alkaloids: Total Synthesis of (+)-NominineCHEMISTRY - A EUROPEAN JOURNAL, Issue 5 2008Kevin Abstract A dual cycloaddition strategy for the synthesis of the hetisine alkaloids has been developed, illustrated by a concise asymmetric total synthesis of (+)-nominine (7). The approach relies on an early-stage intramolecular 1,3-dipolar cycloaddition of a 4-oxido-isoquinolinium betaine dipole with an ene,nitrile dipolarophile. Subsequent late-stage pyrrolidine-induced dienamine isomerization/Diels,Alder cascade allows for rapid construction of the carbonnitrogen polycyclic skeleton within this class of C20 -diterpenoid alkaloids. [source] |