- Two Novel Sesquiterpenoids from the Roots of Ferula ferulaeoides (STEUD.) KOROV.
[作者:Hu, Y; Li, XD; Li, GY; Lin, N; Zuo, WJ; Zeng, YM; Meng, H; Li, XA; Wang, JH,期刊:Helvetica Chimica Acta, 页码:1019-1024 , 文章类型: Article,,卷期:2010年93-5]
- Two new sesquiterpenoids, ferulactones A and B (1 and 2, resp.), have been isolated from the roots of Ferula ferulaeoides (Smut)) KoRov. Their structures and relative configurations were established by analysis of spectr...
- Synthesis and Chemical Properties of Diacetylenes with Pyridinium and 4,4 '-Bipyridinium Groups
[作者:Yamaguchi, I; Higashi, H; Kimura, S; Sato, M,期刊:Helvetica Chimica Acta, 页码:819-828 , 文章类型: Article,,卷期:2010年93-5]
- Diacetylenes (DAs) having a dipolar D-pi-A structure (D = donor: amino group;pi = pi-conjugation core; A = acceptor: pyridinium (Py) and bipyridinium (BPy) groups), i.e., 4 (APBPyDA) and 5 (APPyPyDA), or an A-pi-A struct...
- Tri- and Tetrasubstituted N-Phthalimidoaziridines in 1,3-Dipolar Cycloaddition Reactions
[作者:Ushkov, AV; Kuznetsov, MA; Linden, A; Heimgartner, H,期刊:Helvetica Chimica Acta, 页码:847-862 , 文章类型: Article,,卷期:2010年93-5]
- The thermal reaction of the 2,2,3-trisubstituted N-phthalimidoaziridine 1a with dimethyl acetylenedicarboxylate (DMAD), thioketones 4a-4d, and dimethyl azodicarboxylate (5) proceed even at room temperature leading to the...
- Four New Nor-Diterpenoid Alkaloids from Aconitum brahypodum
[作者:Shen, Y; Zuo, AX; Jiang, ZY; Zhang, XM; Wang, HL; Chen, JJ,期刊:Helvetica Chimica Acta, 页码:863-869 , 文章类型: Article,,卷期:2010年93-5]
- Four new C-19-nor-diterpenoid alkaloids, named brachyaconitines A-D (1-4), were isolated from the roots of Aconitum brachypodum DIELS. Their structures were elucidated as 3-O-acetyl-20-deethyl-20-formylacoitine (1), 3-O-...
- Two New Acylated Tridesmosidic Saponins from Astragalus armatus
[作者:Semmar, N; Tomofumi, M; Mrabet, Y; Lacaille-Dubois, MA,期刊:Helvetica Chimica Acta, 页码:870-876 , 文章类型: Article,,卷期:2010年93-5]
- Two new tridesmosidic glycosides of (3 beta,6 alpha,16 beta,20R,24S)-20,24-epoxycycloartane-3,6,16,25-tetrol (=cycloastragenol), armatosides I and II (1 and 2, resp.), were isolated from the roots of Astragalus armatus (...
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