- Investigations on the reactions of thioamides and related 1,3-diazabuta-1,3-dienes with dimethyl acetylenedicarboxylate: synthesis of novel functionalized heterocycles.
[作者：Marwaha, Alka;Sudan, Vishal;Mahajan, Mohinder P.;,期刊：Heterocycles, 页码：1087-1102 , 文章类型： 研究论文，,卷期：2008年76-2]
- Reaction pathways of substituted thioamides and related 1,3-diazabuta-1,3-dienes with acetylenedicarboxylate are described and mechanisms are prosed. Functionalized heterocycles are prepd. i.e. imidazoles, thiazolidinon...
- Synthesis, structure, and cholinergic effect of novel neuroprotective compounds bearing the tacrine pharmacophore.
[作者：Hamul'akova, Slavka;Kristian, Pavol;Jun, Daniel;Kuca, Kamil;Imrich, Jan;Danihel, Ivan;Bohm, Stanislav;Klika, Karel D.;,期刊：Heterocycles, 页码：1219-1235 , 文章类型： 研究论文，,卷期：2008年76-2]
- Novel tacrine congeners with side ligands suitable for optimal interaction with the peripheral and catalytic sites of acetyl- and butyrylcholinesterase (AChE and BuChE) were synthesized using either 9-isothiocyanato- or ...
- Selective halogen dance reactions at 5,5'-dibromo-2,2'-bithiophene.
[作者：Bobrovsky, Roman;Hametner, Christian;Kalt, Wolfram;Froehlich, Johannes;,期刊：Heterocycles, 页码：1249-1259 , 文章类型： 研究论文，,卷期：2008年76-2]
- Selective single and double halogen migrations were achieved at 5,5'-dibromo-2,2'-bithiophene by varying the amt. of lithiation reagent, and a no. of tri- and tetrasubstituted bithiophenes was obtained by quenching the l...
- Synthesis of g-valerolactones as the tea catechin metabolites.
[作者：Nakano, Sousuke;Hamada, Masahiro;Kishimoto, Takao;Nakajima, Noriyuki;,期刊：Heterocycles, 页码：1001-1005 , 文章类型： 研究论文，,卷期：2008年76-2]
- The synthesis of optically active g-valerolactones, in order to characterize the abs. configuration of the one of the (-)-epicatechin gallate metabolites, was described. The detn. of stereochem. at C(4) position of g-va...
- Synthesis of tetrahydroisoquinoline antitumor natural products: construction of tricyclic lactams through Pictet-Spengler-type cyclization of N-methyl-3-arylmethylpiperazine-2,5-dione with ethyl diethoxyacetate.
[作者：Yokoya, Masashi;Kawachi, Osamu;Saito, Naoki;,期刊：Heterocycles, 页码：1497-1509 , 文章类型： 研究论文，,卷期：2008年76-2]
- 6-Hydroxymethyl-7,8,10-trimethoxy-2,9-dimethyl-3,6,11,11a-tetrahydro- 2H-pyrazino[1,2-b]isoquinoline-1,4-dione (I) was prepd. stereoselectively by Pictet-Spengler-type cyclization of an O,N-acetal of 3-arylmethylpiperazi...
- Diastereoselective nucleophilic cyclopropanation of 1,2-diketones and a-ketoimines with bis(iodozincio)methane.
[作者：Nomura, Kenichi;Asano, Keisuke;Kurahashi, Takuya;Matsubara, Seijiro;,期刊：Heterocycles, 页码：1381-1399 , 文章类型： 研究论文，,卷期：2008年76-2]
- A reaction of 1,2-diketones and a-keto imines with H2C(ZnI)2 gave cyclopropane-1,2-diols and 2-aminocyclopropanols, resp., via nucleophilic [2+1] cycloaddn. The reaction proceeded via a sequential nucleophilic attack of...
- Dimeric flavans from gambir and their structural correlations with (+)-catechin.
[作者：Taniguchi, Shoko;Kuroda, Kayo;Doi, Kou-ichi;Tanabe, Masahiro;Shibata, Takashi;Yoshida, Takashi;Hatano, Tsutomu;,期刊：Heterocycles, 页码：1171-1180 , 文章类型： 研究论文，,卷期：2008年76-2]
- Two new flavan dimers, gambirflavan D3 and gambirflavan D4, were isolated together with gambiriin A3, from gambir, a hot-water ext. of the leaves and young twigs of Uncaria gambir. Because spectral anal. suggested that ...
- Synthesis of 2'-deoxy-4'-C-hydroxymethyl-4'-thioribo-nucleosides and their 2',3'-dideoxy and 2',3'-didehydro-2',3'-dideoxy analogs.
[作者：Nokami, Junzo;Mae, Masayuki;Fukutake, Satoshi;Ubuka, Tomoyuki;Yamada, Mitsuhiro;,期刊：Heterocycles, 页码：1337-1360 , 文章类型： 研究论文，,卷期：2008年76-2]
- (?-2'-Deoxy-4'-C-hydroxymethyl-4'-thio-ribonucleosides I (R = OH, R1 = H, B = pyrimidine nucleobase) and their 2',3'-dideoxy- I (R = R1 = H, B = pyrimidine nucleobase) and 2',3'-didehydro-2',3'-dideoxy- I (RR1 = bond, B ...
- The chemistry of indoles. Part 133. Nucleophilic substitution reaction in indole chemistry: A synthesis of novel 7b-substituted yohimbine and 4aa-substituted 1,2,3,4-tetrahydro-b-carboline derivatives.
[作者：Yoshino, Katsumasa;Yamada, Fumio;Somei, Masanori;,期刊：Heterocycles, 页码：989-994 , 文章类型： 研究论文，,卷期：2008年76-2]
- X-ray analyses of 1-hydroxyyohimbine derivs. clearly show the deviation of the N(1)-O bond from the indole mol. plane (no crystallog. data). This phenomenon supports our working hypothesis "bishomoallylic conjugation". ...
- Synthesis of chiral tetraaminophosphonium chlorides from N-Boc a-amino acid esters.
[作者：Uraguchi, Daisuke;Sakaki, Sawako;Ueki, Yusuke;Ito, Takaki;Ooi, Takashi;,期刊：Heterocycles, 页码：1081-1085 , 文章类型： 研究论文，,卷期：2008年76-2]
- The prepn. of chiral tetraaminophosphonium chlorides I (R = CHMe2, CH2CHMe2, CMe3; R1 = aryl) starting from N-Boc a-amino acid esters is described. Modified conditions for the displacement of the tertiary OH group of th...
- Unexpected cyclization reaction of an overcrowded 2-phosphinophenylmethanimine derivative leading to the formation of the first stable 2-phospha-2H-isoindole derivative.
[作者：Tokitoh, Norihiro;Matsumoto, Teruyuki;Sasamori, Takahiro;,期刊：Heterocycles, 页码：981-987 , 文章类型： 研究论文，,卷期：2008年76-2]
- The reaction of overcrowded 2-phosphinophenylmethanimine deriv. 1 bearing a 2,4,6-tri-t-butylphenyl (Mes*) group on the phosphorus atom and a 2,6-diisopropylphenyl (Dip) group on the nitrogen atom with potassium hydride ...
- Facile and efficient synthesis of 1,4-benzodiazepines from 1,4-naphthoquinones.
[作者：Tandon, Vishnu K.;Maurya, Hardesh K.;,期刊：Heterocycles, 页码：1007-1010 , 文章类型： 研究论文，,卷期：2008年76-2]
- Concise cyclization of 2-amino-3-(2-cyanophenyl)-1,4-naphthoquinones in anhyd. K2CO3/Et3N and EtOH yielded novel 1,4-benzodiazepines fused with 1,4-naphthoquinone nucleus.
- Crystal structure analysis and reactivity of N-alkyl- and N-acyldioxathiazinanes.
[作者：Galaud, Fabrice;Blankenship, John W.;Lubell, William D.;,期刊：Heterocycles, 页码：1121-1131 , 文章类型： 研究论文，,卷期：2008年76-2]
- Cyclic sulfamidates have served as reactive electrophiles for the synthesis of various products, including alkaloids, substituted amines, amino acids and lactams. N-Acyldioxathiazinanes exhibit enhanced reactivity relat...
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