- 6-(Diazomethyl)-1,3-bis(methoxymethyl)uracil, synthesis and transformation into annulated pyrimidinediones
[作者：Zhang, FY; Kulesza, A; Rani, S; Bernet, B; Vasella, A,期刊：Helvetica Chimica Acta, 页码：1201-1218 , 文章类型： Article，,卷期：2008年91-7]
- 6-(Diazomethyl)-1,3-bis(methoxymethyl)uracil (5) was prepared from the known aldehyde 3 by hydrazone formation and oxidation. Thermolysis of 5 and deprotection gave the pyrazolo[4,3-d]pyrimidine-5,7-diones 7a and 7b. Rh-...
- New secoiridoid glucosides from Swertia japonica
[作者：Kikuchi, M; Kakuda, R; Yaoita, Y; Kikuchi, M,期刊：Helvetica Chimica Acta, 页码：1236-1243 , 文章类型： Article，,卷期：2008年91-7]
- Four new secoiridoid glucosides, swertiajaposides C-F (1-4, resp.), were isolated from the whole plant of Swertia japonica MAKINO together with two known compounds, 8-hydroxy-10-hydrosweroside (5) and senburiside IV (6)....
- Two new 2-phenylethyl alcohol derivatives and one new lignan derivative from the root of Ilex pubescens
[作者：Zhou, YB; Wang, JH; Li, XM; Fu, XC; Yan, Z; Cong, Y; Li, X,期刊：Helvetica Chimica Acta, 页码：1244-1250 , 文章类型： Article，,卷期：2008年91-7]
- The phytochemical investigation of the methanolic extract of the root of Ilex pubescens HoOK. et ARN. furnished six compounds including three new compounds, ilexin A (1), ilexin B (2), and ilexin C (3), besides vanillic ...
- DNA interactions of the functionalized (Mixed Polypyridine)ruthenium(II) complex bis(2,2 '-bipyridine-kappa N-1,kappa N-1 ')(methyl dipyrido[3,2-a : 2 ',3 '-c]phenazine-11-carboxylate-kappa N-4,kappa N-5)ruthenium(2+)([Ru(bpy)(2)(dppz-11-CO2Me)](2+))
[作者：Tan, LF; Wang, F; Chao, H; Zhang, S; Fei, JJ; Ji, LN,期刊：Helvetica Chimica Acta, 页码：1251-1260 , 文章类型： Article，,卷期：2008年91-7]
- A novel polypyridine ligand, dipyrido[3,2-a:2',3'-c]phenazine-11-carboxylic acid methyl ester (=dppz-11-CO2Me), and its ruthenium(II) complex, [Ru(bpy)(2)(dppz-11-CO2Me)](2) - (1), were synthesized and characterized. The...
- Squalene-derived triterpene polyethers from the red alga Laurencia omaezakiana
[作者：Matsuo, Y; Suzuki, M; Masuda, M; Iwai, T; Morimoto, Y,期刊：Helvetica Chimica Acta, 页码：1261-1266 , 文章类型： Article，,卷期：2008年91-7]
- In our continuing search on halogenated metabolites from species of the red algal genus Laurencia, a novel squalene-derived triterpene polyether, named omaezakiana (2), was isolated from Laurencia omaezakiana MASUDA alon...
- Synthesis and conformational studies of a hybrid cyclic peptide based on cis-beta-furanoid sugar amino acid (FSAA) and ornithine
[作者：Chandrasekhar, S; Saritha, B; Naresh, P; Udayakiran, M; Reddy, CR; Jagadeesh, B,期刊：Helvetica Chimica Acta, 页码：1267-1276 , 文章类型： Article，,卷期：2008年91-7]
- The conformational control of a 14-helix nucleating template, cis-beta-furanoid sugar amino acid (FSAA), over a flexible delta-amino acid, ornithine is studied in a FSAA-ornithine cyclic tetrapeptide. Extensive NMR and M...
- Five new aromatic glycosides from Carthamus tinctorius
[作者：Zhou, YZ; Chen, H; Qiao, L; Lu, X; Hua, HM; Pei, YH,期刊：Helvetica Chimica Acta, 页码：1277-1285 , 文章类型： Article，,卷期：2008年91-7]
- Five new aromatic glycosides, 1-5, named as carthamosides B-4-B-8, together with three known compounds. 4'-(hydroxyphenacyl)-beta-D-glucopyranoside (6), benzyl-O-alpha-L-rhamnopyranosyl-(1 -> 6)-beta-glucopyranoside (7),...
- Decanedioic acid (C10H18O4)/dodecanedioic acid (C12H22O4) system: Polymorphism of the components and experimental phase diagram
[作者：Ventola, L; Bayes, L; Benages, R; Novegil-Anleo, FJ; Cuevas-Diarte, MA; Calvet, T,期刊：Helvetica Chimica Acta, 页码：1286-1298 , 文章类型： Article，,卷期：2008年91-7]
- The experimental temperature/composition phase diagram of the binary system decanectioic acid (C10H18O4)/dodecanedioic acid (C12H22O4) was established by combining X-ray powder diffraction (XRD), differential-scanning ca...
- Phenylpropanoid esters of rhamnose from Buddleja asiatica
[作者：Liu, YP; Cai, XH; Li, WQ; Luo, XD,期刊：Helvetica Chimica Acta, 页码：1299-1304 , 文章类型： Article，,卷期：2008年91-7]
- Four new phenylpropanoid esters of rhamnose, asiatisides A-D, along with the known compounds, buergeriside C-1 (5), p-methoxycinnamic acid, ferulic acid, and O-methylferulic acid were obtained from the aerial parts of Bu...
- Five new flavonol glycosides from the fresh flowers of Camellia reticulata
[作者：Teng, XF; Yang, JY; Yang, CR; Zhang, YJ,期刊：Helvetica Chimica Acta, 页码：1305-1312 , 文章类型： Article，,卷期：2008年91-7]
- Thirty-one phenolic constituents, including 13 flavonol glycosides, 3 dihydroflavonols, 5 flavan-3-ols, 4 hydrolyzable tannins, and 6 phenylpropanoids, were isolated from the fresh flowers of Camellia reticulata for the ...
- Crystal structure of garciniaphenone and evidences on the relationship between keto-enol tautomerism and configuration
[作者：Martins, FT; Camps, I; Doriguetto, AC; dos Santos, MH; Ellena, J; Barbosa, LCA,期刊：Helvetica Chimica Acta, 页码：1313-1325 , 文章类型： Article，,卷期：2008年91-7]
- Garciniaphenone (=rel-(1R,5R,7R)-3-benzoyl-4-hydroxy-8,8-dimethyl-1,7-bis(3-methylbut-2-en-1-yl)bicyclo[3.3.1]non-3-ene-2,9-dione; 1). a novel natural product, was isolated from a hexane extract of Garcinia brasiliensis ...
- Triumfettamide and triumfettoside Ic, two ceramides and other secondary metabolites from the stems of wild Triumfetta cordifolia A. RICH. (Tiliaceae)
[作者：Sandjo, LP; Hannewald, P; Yemloul, M; Kirsch, G; Ngadjui, BT,期刊：Helvetica Chimica Acta, 页码：1326-1335 , 文章类型： Article，,卷期：2008年91-7]
- Two new ceramides, triumfettamide (1) and triumfettoside Ic (2), characterized as (2R,6Z)-2-hydroxy-N-[(2S,3S,4R)-1,3,4-trihydroxyhexacosan-2-yl]heptadec-6-enamide and (2R)-N-{(1S,2R,3E,6Z, 9Z,12Z,15Z)-1-[(beta-D-glucopy...
- Substituted pyrazolo[3,4-d]pyrimidines: Microwave-assisted, solvent-free synthesis and biological evaluation
[作者：Oliveira-Campos, AMF; Sivasubramanian, A; Rodrigues, LM; Seijas, JA; Vazquez-Tato, MP; Peixoto, F; Abreu, CG; Cidade, H; Oliveira, AE; Pinto, M,期刊：Helvetica Chimica Acta, 页码：1336-1345 , 文章类型： Article，,卷期：2008年91-7]
- A simple and efficient method has been developed for the synthesis of various pyrazolo[3,4-d]pyrimidines by using microwave irradiation under solvent-free conditions. The advantages of applying microwave irradiation comp...
- Xylocosides A-G, phenolic glucosides from the stems of Xylosma controversum
[作者：Xu, ZR; Chai, XY; Bai, CC; Ren, HY; Lu, YN; Shi, HM; Tu, PF,期刊：Helvetica Chimica Acta, 页码：1346-1354 , 文章类型： Article，,卷期：2008年91-7]
- Seven new phenolic glucosides, xylocosides A - G (1 - 7), together with 18 known compounds were isolated from the stems of Xylosma controversum CLOS. In compounds 3-6, the glucose residue is esterified at C(6) by 2-hydro...
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