- Applications of the Chiral Auxiliaries DIOZ and TRIOZ for Conjugate Additions and Comparison with Other Auxiliaries
[作者：Sprecher, H; Pletscher, S; Mori, M; Marti, R; Gaul, C; Patora-Komisarska, K; Otchertianova, E; Beck, AK; Seebach, D,期刊：Helvetica Chimica Acta, 页码：90-110 , 文章类型： Article，,卷期：2010年93-1]
- A number of N-acryloyl-, N-crotonoyl-, N-(3,3,3-trifluorocrotonoyl)-, N-cinnamoyl-, and N-(3-nitroacryloyl)-4-isopropyl- or -4-phenyl-oxazolidin-2-ones with geminal diphenyl substitution, i.e., 7-15, have been prepared a...
- Alternative Synthesis of 2-Hydroxy-3,5,5-trimethylcyclopent-2-en-1-one
[作者：Chapuis, C; Saint-Leger, C,期刊：Helvetica Chimica Acta, 页码：111-117 , 文章类型： Article，,卷期：2010年93-1]
- The 2-hydroxy-3,5,5-trimethylcyclopent-2-en-1-one (1) was synthesized in 42% yield by rearrangement of epoxy ketone 10 on treatment with BF3 center dot Et2O under anhydrous conditions. Intermediate 10 was available from ...
- Trichocarpinine, a Novel Hetidine-Hetisine Type Bisditerpenoid Alkaloid from Aconitum tanguticum var. trichocarpum
[作者：Lin, L; Chen, DL; Liu, XY; Chen, QH; Wang, FP,期刊：Helvetica Chimica Acta, 页码：118-122 , 文章类型： Article，,卷期：2010年93-1]
- Trichocarpinine (1), the first hetidine-hetisine type bisditerpenoid alkaloid, was isolated from the whole herbs of Aconitum tanguticum var. trichocarpum. Its structure was determined by a combination of spectroscopic te...
- Phytoquinoids and Secoprezizaane-Type Sesquiterpenes from Illicium arborescens
[作者：Chang, JY; Abd El-Razek, MH; Chen, YH; Cheng, YB; Chen, SY; Chien, CT; Kuo, YH; Shen, YC,期刊：Helvetica Chimica Acta, 页码：123-132 , 文章类型： Article，,卷期：2010年93-1]
- A phytochemical investigation of the MeOH extract of Illicium arborescens yielded the two new phytoquinoid epimers, 2,3-didehydro-5-O-methyl-11-epiillifunone E (1) and 2,3-didehydro-5-O-methylillifunone E (2), as well as...
- Two New Alkaloids from Stemona tuberosa
[作者：Zhong, Y; Gao, Y; Guo, QP; Li, WM,期刊：Helvetica Chimica Acta, 页码：133-138 , 文章类型： Article，,卷期：2010年93-1]
- Two new alkaloids, named tuberostemoninol A (1) and tuberostemoninol B (2), along with the known compounds tuberostemoninol (3) and bisdehydroneotuberostemonine (4), were isolated from Stemona tuberosa LOUR. The structur...
- Neolignans from the Leaves of Casearia sylvestris SWARTZ
[作者：Wang, W; Ali, Z; Li, XC; Khan, IA,期刊：Helvetica Chimica Acta, 页码：139-146 , 文章类型： Article，,卷期：2010年93-1]
- Six new neolignans, casearialignans A-F (1-6, resp.) and one known lignan syringaresinol-beta-D-glucoside were isolated from the leaves of Casearia sylvestris. Their structures were determined on the basis of 1D- and 2D-...
- Stereoselective Total Synthesis of (11 beta)-11-Methoxycurvularin
[作者：Rajesh, K; Suresh, V; Selvam, JJP; Babu, DC; Venkateswarlu, Y,期刊：Helvetica Chimica Acta, 页码：147-152 , 文章类型： Article，,卷期：2010年93-1]
- A simple and highly efficient stereoselective total synthesis of (11 beta)-11-methoxycurvularin (5), a polyketide natural product, was achieved. The synthesis commenced with a Cu-mediated regioselective opening of (2S)-2...
- A Novel and Expedient Synthesis of 7-Pyrimidinylpyrimido[4,5-d]pyrimidinones
[作者：Mohammadizadeh, MR; Bahramzadeh, M; Mohammadi, AA; Karimi, AR,期刊：Helvetica Chimica Acta, 页码：153-157 , 文章类型： Article，,卷期：2010年93-1]
- A novel and efficient procedure for the synthesis of new 7-pyrimidinylpyrimido[4,5-d]pyrimidinone derivatives was elaborated via the base-promoted cyclodimerization reaction of 5-[(dimethylamino)methylidene]-6-iminopyrim...
- Supramolecular Hydrogels Based on L-Phenylalanine Derivatives with a Positively Charged Terminal Group
[作者：Fu, XJ; Zhang, H; Zhou, SK; Liu, SB; Guo, FQ; Wang, H; Yang, YJ,期刊：Helvetica Chimica Acta, 页码：158-168 , 文章类型： Article，,卷期：2010年93-1]
- A new hydrogelator based on L-phenylalanine with a long hydrophobic chain and positively charged terminus was synthesized, and its gelation behavior in H2O was investigated. Polarized optical microscopy (POM), field emis...
- Two New Metabolites, Epoxydine A and B, from Phoma sp.
[作者：Qin, S; Hussain, H; Schulz, B; Draeger, S; Krohn, K,期刊：Helvetica Chimica Acta, 页码：169-174 , 文章类型： Article，,卷期：2010年93-1]
- The new compounds, epoxydines A and B (1 and 2, resp.). along with the known and related metabolites, 3-6, were isolated from the fungal endophyte Phoma sp. The structures of the new compounds were elucidated by detailed...
- Catalytic Performance of Ruthenium-Supported Ionic-Liquid Catalysts in Sustainable Synthesis of Macrocyclic Lactones
[作者：Hagiwara, H; Nakamura, T; Okunaka, N; Hoshi, T; Suzuki, T,期刊：Helvetica Chimica Acta, 页码：175-182 , 文章类型： Article，,卷期：2010年93-1]
- Thirteen- to eighteen-membered lactones were synthesized by ring-closing olefin-metathesis reactions of bis-olefins with heterogeneous Grubbs-supported ionic-liquid catalysts (SILCs), in which homogeneous Grubbs catalyst...
- Sesquiterpene Lactones from Daucus glaber
[作者：Sallam, AA; Hitotsuyanagi, Y; Mansour, ESS; Ahmed, AF; Gedara, S; Fukaya, H; Takeya, K,期刊：Helvetica Chimica Acta, 页码：48-57 , 文章类型： Article，,卷期：2010年93-1]
- Six new sesquiterpene lactone esters, daucoguaianolactones A-F (1-6), and one new sesquiterpene lactone, daucoeudesmanolactone A (7) were isolated from the leaves and stems of Daucus glaber (FORSSK.) THELL., along with t...
- Photoannelation Reactions of 3-(Alk-1-ynyl)cyclohept-2-en-1-ones
[作者：Vallee, MRJ; Inhuelsen, I; Margaretha, P,期刊：Helvetica Chimica Acta, 页码：17-24 , 文章类型： Article，,卷期：2010年93-1]
- Irradiation (350 nm) of the newly synthesized 3-(alk-1-ynyl)cyclohept-2-en-1-ones 1 and 2 leads to the selective formation of tricyclic head-to-head dimers. In the presence of 2,3-dimethylbuta-1,3-diene, the (monocyclic)...
- Conformational Studies of (+/-)-11,12-Didehydro-11-deoxycorynoline and (+)-11,13-Didehydro-11-deoxychelidonine, Hexahydrobenzo[c]phenanthridine-Type Alkaloid Derivatives, by X-Ray Crystal Structure and NMR Analyses
[作者：Kamigauchi, M; Maekawa, Y; Tode, C; In, Y; Ishida, T,期刊：Helvetica Chimica Acta, 页码：25-32 , 文章类型： Article，,卷期：2010年93-1]
- The X-ray crystal analyses of the two 11-deoxy-didehydrohexahydrobenzo[c]phenanthridine-type alkaloid derivatives 3 and 4, derived from (+/-)-corynoline (1) and (+)-chelidonine (2), established their structures as (+/-)-...
- New Guaipyridine Sesquiterpene Alkaloids from Artemisia rupestris L.
[作者：Su, Z; Wu, HK; He, F; Slukhan, U; Aisa, HA,期刊：Helvetica Chimica Acta, 页码：33-38 , 文章类型： Article，,卷期：2010年93-1]
- Three new guaipyridine sesquiterpene alkaloids, rupestine A, B, C (1-3, resp.), and the new nor-sesquiterpne alkaloid rupestine D (4) were obtained from the flowers of Artemisia rupestris L. Their structure,, were elucid...
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