- Correction of a Reported Xanthone Synthesis: The Preparation of a Benzo[c]coumarin
[作者：Benn, MH; Parvez, M; Perry, NB; Rauk, A; van Klink, JW,期刊：Helvetica Chimica Acta, 页码：389-394 , 文章类型： Article，,卷期：2010年93-3]
- Reinvestigation of a reported synthesis of 5,8-dihydroxy-1,3-dimethoxyxanthone from the reaction of 3,5-dimethoxyphenol with 2-(methoxycarbonyl)-1,4-benzoquinone resulted in the identification of the product as the isome...
- Synthesis of 1,3-Selenazol-2(3H)-imines
[作者：Atanassov, PK; Linden, A; Heimgartner, H,期刊：Helvetica Chimica Acta, 页码：395-404 , 文章类型： Article，,卷期：2010年93-3]
- The reaction of N,N'-diarylselenoureas 16 with phenacyl bromide in EtOH under reflux, followed by treatment with NH3, gave N,3-diaryl-4-phenyl-1,3-selenazol-2(3H)-imines 13 in high yields (Scheme 2). A reaction mechanism...
- Two New Sesquiterpene Lactones and a Triterpene Glycoside from Cichorium glandulosum
[作者：Wu, HK; Su, Z; Xin, XL; Aisa, HA,期刊：Helvetica Chimica Acta, 页码：414-421 , 文章类型： Article，,卷期：2010年93-3]
- Two new sesquiterpene lactones, namely 8-O-methylsenecioylaustricin (1) and epi-8 alpha-angeloyloxy-cichoralexin (2), as well as a new triterpene glycoside (taraxasterol 3-O-beta-D-glucoside, 3), together with the three ...
- Two New Indole Alkaloids from Tabernaemontana hystrix STEUD. (Apocynaceae)
[作者：de Souza, JJ; Mathias, L; Braz, R; Vieira, IJC,期刊：Helvetica Chimica Acta, 页码：422-429 , 文章类型： Article，,卷期：2010年93-3]
- Two new monoterpene indole alkaloids named ibogamine-7,8-dione (1) and 12-methoxyvoachalotine (2), and eight known ones, coronaridine (3), coronaridine hydroxyindolenine (4), 5-oxocoronaridine (5), 3-oxocoronaridine hydr...
- Synthesis of Novel Spiropyrimidinones
[作者：Amutha, P; Nagarajan, S,期刊：Helvetica Chimica Acta, 页码：430-434 , 文章类型： Article，,卷期：2010年93-3]
- An efficient one-pot synthesis of new spirocyclic 2-aminopyrimidinones via the three-component reaction of a cyclic ketone, alkyl cyanoacetate. and guanidinium carbonate was developed via a domino reaction.
- One-Pot, Three-Component Synthesis of 1-(2-Hydroxyethyl)-1H-1,2,3-triazole Derivatives by Copper-Catalyzed 1,3-Dipolar Cycloaddition of 2-Azido Alcohols and Terminal Alkynes under Mild Conditions in Water
[作者：Sharghi, H; Hosseini-Sarvari, M; Moeini, F; Khalifeh, R; Beni, AS,期刊：Helvetica Chimica Acta, 页码：435-449 , 文章类型： Article，,卷期：2010年93-3]
- A safe, efficient, and improved procedure for the regioselective synthesis of 1-(2-hydroxyethyl)-1H-1,2,3-triazole derivatives under ambient conditions is described. Terminal alkynes reacted with oxiranes and NaN3 in the...
- Three New Diterpenoids from Rabdosia lophanthoides var. gerardiana
[作者：Li, CY; Gao, H; Jiao, WH; Zhang, L; Zhou, GX; Yao, XS,期刊：Helvetica Chimica Acta, 页码：450-456 , 文章类型： Article，,卷期：2010年93-3]
- Three new diterpenoids, together with three known ones, were isolated from the air-dried whole herbs of Rabdosia lophanthoides var. gerardiana. The structures of the new diterpenoids were established as 3,4-dihydro-11-hy...
- Four New Triterpenes from Anchusa azurea var. azurea
[作者：Kuruuzum-Uz, A; Guvenalp, Z; Kazaz, C; Salih, B; Demirezer, LO,期刊：Helvetica Chimica Acta, 页码：457-465 , 文章类型： Article，,卷期：2010年93-3]
- Four new triterpene glycosides, named oleanazuroside 1 (1), oleanazuroside 2 (2), ursolazuroside 1 (3). and ursolazuroside 2 (4), together with the seven known compounds 5-11, were isolated from the MeOH extract of the a...
- Specific Deuteration in Patuletin and Related Flavonoids via Keto-Enol Tautomerism: Solvent- and Temperature-Dependent H-1-NMR Studies
[作者：Faizi, S; Siddiqi, H; Naz, A; Bano, S; Lubna,期刊：Helvetica Chimica Acta, 页码：466-481 , 文章类型： Article，,卷期：2010年93-3]
- An H/D exchange process in patuletin (1) and its derivatives in D-donor solvents (e.g., CH3COOD), which occurs regioselectively at C(8) was observed for the first time during NMR studies. The effect of substituents and t...
- Five New C-19-Diterpenoid Alkaloids from Aconitum hemsleyanum
[作者：Shen, Y; Zuo, AX; Jiang, ZY; Zhang, XM; Wang, HL; Chen, JJ,期刊：Helvetica Chimica Acta, 页码：482-489 , 文章类型： Article，,卷期：2010年93-3]
- Five new C-19-diterpenoid alkaloids, named hemsleyaconitines A-E (1-5, resp.), were isolated from Aconitum hemsleyanum PRITZ. By UV, IR, MS, 1D- and 2D-NMR analyses, their structures were elucidated as 18-dehydroxygenicu...
- Three New Terpenoids from Pinus yunnanensis
[作者：Wang, B; Ju, J; He, XF; Yuan, T; Yue, JM,期刊：Helvetica Chimica Acta, 页码：490-496 , 文章类型： Article，,卷期：2010年93-3]
- A new abietatrienoid, 15-methoxydidehydroabietic acid (1), a new ring B-seco abietatrienoid, 10-hydroxy-9,10-secoabieta-8,11,13-trien-18-oic acid (2), and a new tetracyclic triterpenoid, pinusyunnanol (3), together with ...
- A Convenient Approach to C-2-Chiral 1,1,4,4-Tetrasubstituted Butanetetraols: Direct Alkylation or Arylation of Enantiomerically Pure Diethyl Tartrates
[作者：Shan, ZX; Hu, XY; Zhou, Y; Peng, XT; Li, Z,期刊：Helvetica Chimica Acta, 页码：497-503 , 文章类型： Article，,卷期：2010年93-3]
- C-2-Chiral 1,1,4,4-tetraaryl- or 1,1,4,4-tetraalkyl-substituted butanetetraols have been conveniently synthesized via arylation or alkylation of unprotected diethyl (2R,3R)- and (2S,3S)-tartrates with Grignard reagent. T...
- Three New Dimeric Orcinol Glucosides from Curculigo orchioides
[作者：Zuo, AX; Shen, Y; Jiang, ZY; Zhang, XM; Zhou, J; Lu, J; Chen, JJ,期刊：Helvetica Chimica Acta, 页码：504-510 , 文章类型： Article，,卷期：2010年93-3]
- Three new phenolic glucosides named orcinosides A, B, and C (1,2, and 3, resp.) were isolated in low yields (4.0 x 10(-6), 11.5 x 10(-6), 4.5 x 10(-6)%, resp.) from the rhizomes of Curculigo orchioides. Their structures ...
- New Steroids and a New Alkaloid from the Gorgonian Isis minorbrachyblasta: Structures, Cytotoxicity, and Antilarval Activity
[作者：Qi, SH; Miao, L; Gao, CH; Xu, Y; Zhang, S; Qian, PY,期刊：Helvetica Chimica Acta, 页码：511-516 , 文章类型： Article，,卷期：2010年93-3]
- Two new polyoxygenated steroids, (1 alpha,3 beta,7 alpha,11 alpha,12 beta)-gorgost-5-ene-1,3,7,11,12-pentol 12-acetate (1) and 11-O-acetyl-22-epihippuristanol (2), and a new alkaloid. 2,3,5,6,11,11b-hexahydro-2-hydroxy-1...
- New Epoxy-Substituted Nitrogenous Bisabolene-Type Sesquiterpenes from a Hainan Sponge Axinyssa sp.
[作者：Sun, JZ; Chen, KS; Liu, HL; van Soest, R; Guo, YW,期刊：Helvetica Chimica Acta, 页码：517-521 , 文章类型： Article，,卷期：2010年93-3]
- Two new uncommon epoxy-substituted nitrogenous bisabolene-type sesquiterpenes, 3-formamido7,8-epoxy-alpha-bisabolane (4), 3-isocyano-7,8-epoxy-alpha-bisabolane (5), together with three known related sesquiterpenes, 1-3, ...
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