- Salaprinol and ponkoranol with thio-sugar sulfonium sulfate structure from Slacia prinoides and a-glucosidase inhibitory activity of ponkoranol and kotalanol desulfate.
[作者:Yoshikawa, Masayuki;Xu, Fengming;Nakamura, Seikou;Wang, Tao;Matsuda, Hisashi;Tanabe, Genzoh;Muraoka, Osamu;,期刊:Heterocycles, 页码:1397-1405 , 文章类型: 研究论文,,卷期:2008年75-6]
- The methanolic ext. from the roots and stems of Indian Salacia prinoides and its water-eluted fraction of Diaion HP-20 column were found to exhibit inhibitory activities against a-glucosidase. From the water-eluted frac...
- A facile synthesis of cycloether systems bearing [2,4]-oxazole units.
[作者:Incerti, Marcelo;Fontana, Carolina;Scarone, Laura;Moyna, Guillermo;Manta, Eduardo;,期刊:Heterocycles, 页码:1385-1396 , 文章类型: 研究论文,,卷期:2008年75-6]
- We present a concise and high-yielding route for the prepn. of novel five-, six-, and seven-membered cycloether systems bearing [2,4]-oxazoles units. The approach is based on intramol. electrophilic oxirane ring expansi...
- Metalloreceptors composed of organopalladium complexes containing 5-mercapto-3H-1,3,4-thiadiazolin-2-ones.
[作者:Cho, Nam Sook;Kim, Sang Beom;Kim, Min Hye;Park, Seong Gyun;Kang, Sung Kown;Lee, Se Jin;Kim, Yeong-Joon;,期刊:Heterocycles, 页码:1457-1466 , 文章类型: 研究论文,,卷期:2008年75-6]
- Macrocyclic ligands contg. two 5-mercapto-3H-1,3,4-thiadiazoline-2-one groups and one 1,3-benzenedimethanethiol group, which served to link the 2- and 5-positions of the heterocycle unit and chelate palladium ion, resp.,...
- A convenient synthesis of novel series of 4-cyclohexyl-2-substituted [1,2,4]triazolo[1,5-a]quinazolin-5(4H)-ones. novel isomers of H1 antihistaminic activity agents.
[作者:Shawali, Ahmad S.;Hassaneen, Hamdi M.;Shurrab, Nabil K.;,期刊:Heterocycles, 页码:1479-1488 , 文章类型: 研究论文,,卷期:2008年75-6]
- A novel series of 2,4-disubstituted-1,2,4-triazolo[1,5-a]-quinazolin-5(4H)-ones, e. g. I, were prepd. by Dimroth rearrangement of their resp. isomers namely 1,4-disubstituted[1,2,4]triazolo[4,3-a]-quinazolin-5(4H)-ones. ...
- Reaction of dithiolactones with benzyne: a novel synthesis of benzo-1,3-dithioles.
[作者:Okuma, Kentaro;Nojima, Akiko;Yokomori, Yoshinobu;,期刊:Heterocycles, 页码:1417-1424 , 文章类型: 研究论文,,卷期:2008年75-6]
- Compounds (More Than One Hetero Atom)) Section The reaction of benzyne with several kinds of dithiolactones, such as b-dithiolactone, benzothiophene-1-thione, 1,2-dithiolane-3-thione, and 3,3,5,5-tetramethyl-4-thioxothio...
- A convenient synthesis of 5-amino-substituted 1,2,4-oxadiazole derivatives via reactions of amidoximes with carbodiimides.
[作者:Ispikoudi, Maria;Litinas, Konstantinos E.;Fylaktakidou, Konstantina C.;,期刊:Heterocycles, 页码:1321-1328 , 文章类型: 研究论文,,卷期:2008年75-6]
- 5-Amino substituted 1,2,4-oxadiazole derivs. were easily prepd., in one step and in high yields, via reactions of a variety of aryl, benzyl, cycloalkyl and alkyl amidoximes with com. available carbodiimides. Alkyl carbod...
- Synthesis and affinity evaluation for AT1 receptor of phenylsalicylaldoxime-derivatives structurally related to sartans.
[作者:Rapposelli, Simona;Cuboni, Serena;Digiacomo, Maria;Lucacchini, Antonio;Minutolo, Filippo;Trincavelli, Maria Letizia;Balsamo, Aldo;,期刊:Heterocycles, 页码:1467-1477 , 文章类型: 研究论文,,卷期:2008年75-6]
- The synthesis of new potential AT1 antagonists through the replacement of the biphenyltetrazole portion of the losartan with biphenylaldoximic and phenylsalicylaldoximic moieties was reported. Moreover, also the trifluor...
- Synthesis of 8-hydroxyimidazo[1,2-a]pyridine-2-carboxylic acid and its derivatives.
[作者:Groselj, Uros;Bezensek, Jure;Meden, Anton;Svete, Jurij;Stanovnik, Branko;Oblak, Marko;Anderluh, Petra Stefanic;Urleb, Uros;,期刊:Heterocycles, 页码:1355-1370 , 文章类型: 研究论文,,卷期:2008年75-6]
- Two imidazo[1,2-a]pyridines, 8-hydroxyimidazo[1,2-a]pyridine-2-carboxylic acid (I, R = OH) and Et 8-hydroxyimidazo[1,2-a]pyridine-2-carboxylate (I, R = OEt) were prepd. via cyclization of 2-aminopyridin-3-ol with bromopy...
- Studies with malononitrile derivatives: synthesis and reactivity of 4-benzylpyrazole-3,5-diamine, 4-benzylisoxazole-3,5-diamine and thiazolidin-3-phenylpropanenitrile.
[作者:Al-Mousawi, Saleh Mohammed;Moustafa, Moustafa Sherief;Elnagdi, Mohamed Hilmy;,期刊:Heterocycles, 页码:1371-1383 , 文章类型: 研究论文,,卷期:2008年75-6]
- Benzylmalononitrile reacts with hydrazines, and hydroxylamine hydrochloride to yield the 4-benzylpyrazole-3,5-diamines and 4-benzylisoxazole-3,5-diamine, resp. Pyrazole-3,5-diamines could be readily reacted with a,b-uns...
- Structure of 2,6-dinitrophenylsulfanylethanenitrile and 2,4,6-trinitrophenylsulfanylethanenitrile and their ring closure giving 2-cyanobenzo[d]thiazole-3-oxides.
[作者:Cerny, Jiri;Bertolasi, Valerio;Hanusek, Jiri;Machacek, Vladimir;,期刊:Heterocycles, 页码:1425-1433 , 文章类型: 研究论文,,卷期:2008年75-6]
- The base-catalyzed ring closure of 2,6-dinitrophenylsulfanylethanenitrile and 2,4,6-trinitrophenylsulfanylethanenitrile gives 2-cyano-7-nitrobenzo[d]thiazole-3-oxide and 2-cyano-5,7-dinitrobenzo[d]thiazole-3-oxide, resp....
- Three new ent-kaurane diterpenoids from the seeds of Pharbitis nil.
[作者:Kim, Ki Hyun;Jin, Mi Rim;Choi, Sang Zin;Son, Mi Won;Lee, Kang Ro;,期刊:Heterocycles, 页码:1447-1455 , 文章类型: 研究论文,,卷期:2008年75-6]
- ent-kauran-18-(6b)-olide (1), Me 6b,7b,16b,17-tetrahydroxy ent-kauran-18-oate (2) and 6b,7b,16b,17-tetrahydroxy ent-kauran-18-oic acid (3), together with thirteen known compds., were isolated from the seeds of Pharbitis ...
- New phenolic glycosides from the leaves of Salacia chinensis.
[作者:Nakamura, Seikou;Zhang, Yi;Wang, Tao;Matsuda, Hisashi;Yoshikawa, Masayuki;,期刊:Heterocycles, 页码:1435-1446 , 文章类型: 研究论文,,卷期:2008年75-6]
- A3 (3), B1 (4), B2 (5), C (6), and D (7), were isolated from the leaves of Salacia chinensis (Hippocrateaceae) collected in Thailand. Their structures were elucidated on the basis of chem. and physicochem. evidence.
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