- Medicinal foodstuffs. XXXIII. Gastroprotective principles from Boesenbergia rotunda (Zingiberaceae): Absolute stereostructures of Diels-Alder type addition prenylchalcones.
[作者:Yoshikawa, Masayuki;Morikawa, Toshio;Funakoshi, Kanako;Ochi, Momotaro;Pongpiriyadacha, Yutana;Matsuda, Hisashi;,期刊:Heterocycles, 页码:1639-1650 , 文章类型: 研究论文,,卷期:2008年75-7]
- A methanolic ext. of the rhizomes of Boesenbergia rotunda (Zingiberaceae) was found to exhibit potent inhibitory activities on ethanol- or indomethacin-induced gastric mucosal lesions in rats. Using a bioassay-guided sep...
- Thiophene derivatives from the aerial part of Pluchea indica.
[作者:Qiu, Yun-Qi;Qi, Shu-Hua;Zhang, Si;Tian, Xin-Peng;Xiao, Zhi-Hui;Li, Min-Yi;Li, Qing-Xin;,期刊:Heterocycles, 页码:1757-1764 , 文章类型: 研究论文,,卷期:2008年75-7]
- Chem. investigation on the aerial part of Pluchea indica resulted in the isolation of two new thiophene derivs., 2-(4-hydroxy-3-methoxybut-1-yn-1-yl)-5-(penta-1,3-diyn-1-yl)thiophene (I) and 2-(4-O-b-glucopyranosyl-3-hyd...
- Synthesis of pyrrolo[2,3-d]pyrimidine analogues of the potent antitumor agent N-{4-[3-(2,4-diamino-7H-pyrrolo-[2,3-d]pyrimidin-5-yl)propyl]benzoyl}-L- glutamic acid (TNP-351).
[作者:Zhu, Gaojun;Liu, Zenglu;Xu, Yun;Mao, Zhenmin;,期刊:Heterocycles, 页码:1631-1638 , 文章类型: 研究论文,,卷期:2008年75-7]
- Two glutamate derivs. I and II, analogs of TNP-351, of were synthesized as anticancer agents, and their biol. activities were evaluated.
- Synthesis of novel N-substituted 6-chlorothieno[2,3-e]-1,4,2-dithiazin-3-amine 1,1-dioxides.
[作者:Abu-El-Halawa, Rajab;Al-Refai, Mahmoud H.;El-Abadelah, Mustafa M.;Tabba, Hani D.;,期刊:Heterocycles, 页码:1749-1755 , 文章类型: 研究论文,,卷期:2008年75-7]
- A series of N-substituted 6-chlorothieno[2,3-e]-1,4,2-dithiazin-3-amine 1,1-dioxides were prepd. via direct interaction of the appropriate isothiocyanate with 2,5-dichloro-3-thiophenesulfonamide in THF in the presence of...
- A facile synthesis of novel heteropolycyclic pyrazines and oxazoles and mechanistic studies of 2,3-dihydrobenzo[de]chromene-7,8-dione with amines.
[作者:Jian, Hua-pei;Wang, Xing-yuan;Huang, Zhi-shu;Huang, Shi-liang;Gu, Lian-quan;,期刊:Heterocycles, 页码:1773-1778 , 文章类型: 研究论文,,卷期:2008年75-7]
- A series of novel heteropolycyclic pyrazines and oxazoles were synthesized by the reaction of 2,3-dihydrobenzo[de]chromene-7,8-dione with amines under mild reaction conditions. The mechanisms for these reactions were di...
- Simple and convenient synthesis of 2,3,4,5-tetrahydro-1,5-dioxopyrrolo[1,2-a]quinazoline-3a(1H)-carboxylic acids in multi-gram scale.
[作者:Iminov, Rustam T.;Tverdokhlebov, Anton V.;Tolmachev, Andrey A.;Volovenko, Yulian M.;Kostyuk, Alexander N.;Chernega, Alexander N.;Rusanov, Eduard B.;,期刊:Heterocycles, 页码:1673-1680 , 文章类型: 研究论文,,卷期:2008年75-7]
- Compounds (More Than One Hetero Atom)) Section The title compds. were prepd. in 70-100 g scale by reaction of 2-amino-N-alkyl(aryl)benzamides with 2-oxoglutarate. Their structure was proved unambiguously by an x-ray cry...
- A facile synthesis of imidazo[1,5-b]pyridazines from 3-formylchromones.
[作者:Plaskon, Andrey S.;Ryabukhin, Sergey V.;Volochnyuk, Dmitriy M.;Shivanyuk, Alexander N.;Tolmachev, Andrey A.;,期刊:Heterocycles, 页码:1765-1772 , 文章类型: 研究论文,,卷期:2008年75-7]
- The Me3SiCl-promoted recyclization of 3-formylchromones with 1-amino-1H-imidazoles resulting in a set of imidazo[1,5-b]pyridazines is performed with high preparative yields. The reaction is sensitive to the structure of...
- Arylhydrazononitriles as building blocks in heterocyclic synthesis: synthesis of new benzothiazolyl-1,2,3-triazole amines and 1,2,3-triazol-4-yl-1,3,4-thiadiazol-5-ylamines.
[作者:Badahdah, Khadija Omar;,期刊:Heterocycles, 页码:1623-1630 , 文章类型: 研究论文,,卷期:2008年75-7]
- Benzothiazole-2-acetonitriles and 5-benzoylamino-1,3,4-thiadiazole-2-acetonitriles coupled with arom. diazonium salts to yield the corresponding a-arylhydrazono nitriles. The latter reacted with NH2OH.HCl in ethanolic Na...
- Versatile three component coupling for the synthesis of pyrazolopyridines and other pyrido fused systems.
[作者:Almansa, Carmen;Virgili, Marina;Carceller, Elena;Grima-Poveda, Pedro;,期刊:Heterocycles, 页码:1695-1709 , 文章类型: 研究论文,,卷期:2008年75-7]
- A new unexpected reaction of 1-(4-fluorophenyl)-2-(4-pyridyl)ethanone with 3-aminopyrazole, involving loss of a 4-pyridylmethyl group, afforded 4,6-bis(4-fluorophenyl)-5-(4-pyridyl)-1H-pyrazolo[3,4-b]pyridine in good yie...
- Solvent-free synthesis of 2-(1H-benzimidazol-1-ylmethyl)-4-substituted 1-hydroxyaryl by the two component Mannich reaction between 6H,13H-5:12,7:14-dimethanedibenzo[d,i][1,3,6,8]tetraazecine (DMDBTA) and phenols.
[作者:Rivera, Augusto;Navarro, Miguel Angel;Rios-Motta, Jaime;,期刊:Heterocycles, 页码:1651-1658 , 文章类型: 研究论文,,卷期:2008年75-7]
- A series of Mannich bases, 2-(1H-benzimidazol-1-ylmethyl)phenols were synthesized in good yields, in a single pot by the Mannich reaction of 6H,13H-5:12,7:14-dimethanedibenzo[d,i][1,3,6,8]tetraazecine and phenols at 150?...
- A new route for the synthesis of linezolid mimetic 3,4-disubstituted oxazolidin-2-one derivatives.
[作者:Fujisaki, Fumiko;Abe, Nobuhiro;Sumoto, Kunihiro;,期刊:Heterocycles, 页码:1681-1694 , 文章类型: 研究论文,,卷期:2008年75-7]
- New oxazolidin-2-ones, which mimic the clin. useful antibacterial linezolid, were prepd. by cyclization of (EtO)2CO with 2-[(arylmethyl)amino]-1,3-propanediol, obtained from DL-serinate.HCl and benzoate derivs.
- Synthesis of 5-(adamantan-1-yl)-4,4-dimethyl-1-(3-oxyphenyl)-2,6,7-trioxabicyclo[3.2 .0]heptanes and their base-induced chemiluminescent decomposition in liquid/solid phase.
[作者:Matsumoto, Masakatsu;Tanimura, Masatoshi;Tachi, Masahiko;Watanabe, Nobuko;,期刊:Heterocycles, 页码:1725-1734 , 文章类型: 研究论文,,卷期:2008年75-7]
- Singlet oxygenation of 4-(adamantan-1-yl)-5-(3-hydroxyphenyl)-1,2-dihydrofuran effectively gave bicyclic dioxetane I as crystals with a high m.p. Dioxetane I decompd. rapidly accompanied by the emission of blue light, w...
- Synthesis of 6-pyridylaminopurines.
[作者:Demange, Luc;Oumata, Nassima;Quinton, Julia;Bouaziz, Serge;Lozach, Olivier;Meijer, Laurent;Galons, Herve;,期刊:Heterocycles, 页码:1735-1743 , 文章类型: 研究论文,,卷期:2008年75-7]
- An efficient synthesis of new 6-(pyridinylamino)purines was developed based on Buchwald-Hartwig coupling reaction between aminopyridines and 2,6-dichloro-9-isopropylpurine. The reaction was best carried out in the prese...
- Enantioselective synthesis of piperidine diamine derivatives as novel fXa inhibitors.
[作者:Mochizuki, Akiyoshi;Naito, Hiroyuki;Nakamoto, Yumi;Uoto, Kouichi;Ohta, Toshiharu;,期刊:Heterocycles, 页码:1659-1671 , 文章类型: 研究论文,,卷期:2008年75-7]
- Previously, it was reported that racemic cis-piperidine diamine derivs. (?-I (R = COMe, COCH2OMe) showed high anti-fXa, anticoagulation activity and oral activities. To confirm the active enantiomer, (3R,4S)-piperidine ...
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