- Synthesis of Dialkyl 2-(Alkylamino)-4,9-dihydro-9-oxocyclohepta[b]pyran-3,4-dicarboxylates
[作者：Azizian, J; Ramazani, A; Haji, M,期刊：Helvetica Chimica Acta, 页码：371-375 , 文章类型： Article，,卷期：2011年94-3]
- Dialkyl 2-(alkylamino)-4,9-dihydro-9-oxocyclohepta[b]pyran-3,4-dicarboxylates are prepared in a one-pot three-component reaction of alkyl isocyanide, dialkyl acetylenedicarboxylate, and alpha-tropolone (=2-hydroxycyclohe...
- Polyynes from Toona ciliata var. ciliata and Related Cytotoxic Activity
[作者：Ning, J; Di, YT; Li, SF; Geng, ZL; He, HP; Wang, YH; Wang, YY; Li, Y; Li, SL; Hao, XJ,期刊：Helvetica Chimica Acta, 页码：376-381 , 文章类型： Article，,卷期：2011年94-3]
- A phytochemical investigation of Toona ciliata var. ciliata afforded three new polyynes, 1 - 3. Their structures were elucidated on the basis of spectroscopic analysis and chemical methods. Only compound 3 exhibited pote...
- Novel Four-Component Approach for the Synthesis of Polyfunctionalized 1,4-Dihydropyridines in Aqueous Media
[作者：Hadjebi, M; Hashtroudi, MS; Bijanzadeh, HR; Balalaie, S,期刊：Helvetica Chimica Acta, 页码：382-388 , 文章类型： Article，,卷期：2011年94-3]
- The four-component reaction of dimethyl acetylenedicarboxylate (= dimethyl but-2-ynedioate; DMAD), aromatic aldehydes, and malononitrile (= propanedinitrile) leads to polyfunctionalized 1,4-dihydropyridine derivatives. T...
- Synthesis of a Novel Series of 2,3-Disubstituted Quinazolin-4(3H)-ones as a Product of a Nucleophilic Attack at C(2) of the Corresponding 4H-3,1-Benzoxazin-4-one
[作者：El-Hashash, MA; El-Badry, YA,期刊：Helvetica Chimica Acta, 页码：389-396 , 文章类型： Article，,卷期：2011年94-3]
- A new series of 2,3-disubstituted quinazolin-4(3H)-one derivatives was synthesized by nucleophilic attack at C(2) of the corresponding key starting material 2-propyl-4H-3,1-benzoxazin-4-one (Scheme 2). The reaction proce...
- Further Alkaloids from the Fruits of Daphniphyllum longeracemosum
[作者：Yang, TQ; Di, YT; He, HP; Zhang, QA; Zhang, Y; Hao, XJ,期刊：Helvetica Chimica Acta, 页码：397-403 , 文章类型： Article，,卷期：2011年94-3]
- Three new Daphniphyllum alkaloids, daphlongeranines C - E (1 - 3), along with 13 known ones, were isolated from the fruits of Daphniphyllum longeracemosum. Their structures were elucidated on the basis of extensive spect...
- Two New Cytotoxic Naphthoquinones from Didymocarpus hedyotideus
[作者：Xiao, XB; Lin, YX; Xu, GB; Gong, XB; Gu, Y; Tong, JF; Yang, J,期刊：Helvetica Chimica Acta, 页码：404-409 , 文章类型： Article，,卷期：2011年94-3]
- A new naphthoquinone, 6-hydroxy-alpha-dunnione (1) and a new binaphthoquinone, methyl 1,1',4,4'-tetrahydro-3-hydroxy-1,1',4,4'-tetraoxo[2,2'-binaphthalene]-3'-carboxylate (2), along with ten known compounds, including na...
- Efficient and Chemoselective Methods for the Synthesis of Some Isobenzofuran and Spiro[isobenzofuran-1,2 '-pyrrole] Derivatives
[作者：Mohammadizadeh, MR; Firoozi, N; Aradeh, R,期刊：Helvetica Chimica Acta, 页码：410-416 , 文章类型： Article，,卷期：2011年94-3]
- An efficient and practical one-pot procedure for the direct chemoselective synthesis of isobenzofuran and spiro[isobenzofuran-1,2'-pyrrole] derivatives is developed via oxidative cleavage of 3a, 8b-dihydroxyindeno[1,2-b]...
- Splendidins A-C, Three New Clerodane Diterpenoids from Salvia splendens
[作者：Pan, ZH; Cheng, JT; He, JA; Wang, YY; Peng, LY; Xu, G; Sun, WB; Zhao, QS,期刊：Helvetica Chimica Acta, 页码：417-422 , 文章类型： Article，,卷期：2011年94-3]
- Three new clerodane diterpenoids, splendidins A - C (1 - 3, resp.), were isolated from Salvia splendens, together with six known ones. Their structures were elucidated by extensive spectroscopic analysis. Splendidin C (3...
- New Isoflavone C-Glycosides from Pueraria lobata
[作者：Li, GH; Zhang, QW; Wang, L; Zhang, XQ; Ye, WC; Wang, YT,期刊：Helvetica Chimica Acta, 页码：423-428 , 文章类型： Article，,卷期：2011年94-3]
- Three new isoflavone C-glycosides, along with two known isoflavone O-glycosides, were isolated from the roots of Pueraria lobata (WILD.) OHWI. The structures of the new compounds were elucidated as 4',7-dihydroxy-3'-meth...
- On the Reactivity of (-)-(R)-Carvone and (-)-4a alpha,7 alpha,7a beta-Nepetalactone: Synthesis of New Heterocycles
[作者：El Mebtoul, A; Rouani, M; Chammache, M; Bouidida, H; Ilidrissi, A,期刊：Helvetica Chimica Acta, 页码：433-437 , 文章类型： Article，,卷期：2011年94-3]
- The 1,3-dipolar cycloaddition of 4-chlorobenzonitrile oxide to the unsaturated system of (-)-(R)-carvone occurred exclusively at C(8) to give a new isoxazoline derivative. This derivative reacts with NH2OH to yield a new...
- Caragisides A-C, New Isoflavone Glucosides from Caragana conferta with Inhibition of Platelet Aggregation
[作者：Khan, AN; Fatima, I; Malik, A; Rasheed, H,期刊：Helvetica Chimica Acta, 页码：438-445 , 文章类型： Article，,卷期：2011年94-3]
- Caragisides A-C (1 - 3, resp.), three new isoflavone glucosides, were isolated from the BuOH sub-fraction of the EtOH extract of the whole plant of Caragana conferta, along with ononoside (4), reported for the first time...
- Two New Flavonoids from the Rhizomes of Abacopteris penangiana
[作者：Zhao, ZX; Ruan, JL; Jin, J; Zhu, CC; Yu, Y,期刊：Helvetica Chimica Acta, 页码：446-452 , 文章类型： Article，,卷期：2011年94-3]
- A new flavan-4-ol glycoside, abacopterin K (1), and a new dihydrochalcone glycoside, abacopterin L (2), were isolated from the rhizomes of Abacopteris penangiana. Their structures were elucidated on the basis of various ...
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