ライフサイエンスコーパス: calixarene

1 the latter inside the cavity of the ionized calixarene.

2 of water and alcohol, recovering the parent calixarenes.

3 oligomers and, ultimately, into macrocyclic calixarenes.

4 o demonstrated in titration experiments with calixarenes 1, 2, and 5 and commercially available NO(+)

5 Several C-silylated (allyldimethylsilyl) calixarenes (1, 14, and 18) were treated with commercial

6 owed by 2-fold elimination of water afforded calixarene 11 with a pair of distal exocyclic double bon

7 d ligands for metal cations (nitrate or CMPO calixarene 16) shifts the equilibrium to the vase-shaped

8 ith commercial TBAF in THF, giving the novel calixarenes 2, 15, and 19, in which the opposite rings w

9 The Wurtz-Fittig reaction of tetraiodo calixarene 3 with Na/Me3SiCl in DME gave a mixture of te

10 ts to extend this reaction to the tetrabromo calixarene 4 resulted in slow reactions giving mixtures

11 xarenes 4 and 14 were converted, in turn, to calixarenes 6 and 16, which carry OH groups on the lower

12 ve a mixture of tetrakis- and tris-silylated calixarenes (6 and 7).

13 Tris(silyl) calixarene 7 was assigned the flattened cone conformatio

14 Calixarene 8 exists in tetrachloroethane-d2 solution at

15 lowed by 2-fold elimination of water yielded calixarene 8 possessing exocyclic double bonds at two ad

16 at this macrocycle is currently the smallest calixarene able to host linear and branched alkylammoniu

17 The calixarene acts as a molecular template that enforces op

18 ractions established between the dye and the calixarene and by CV-CV stacking interactions.

19 ials: trapdoor zeolites, supramolecular host calixarenes and metal-organic frameworks.

20 ion has been studied for a variety of capped calixarenes, and a general trend for the regioselective

21 phyrins and phthalocyanines), carbohydrates, calixarenes, and macrocycles.

22 bstitution, and macrocyclic framework of the calixarene are essential for HCl binding and transport.

23 rated that the recognition properties of the calixarene are unaffected upon complexation with the cyc

24 The results indicate that these calixarenes are able to form 1:1, 1:2, and 2:1 host-gues

25 hensive mechanistic understanding of how the calixarenes are assembled be accrued.

26 Calixarenes are macrocyclic oligomers, some of which are

27 solution containing a commercially available calixarene-based Ag+ ionophore (IV) was injected into a

28 ribe the design and synthesis of nonpeptide, calixarene-based helix/sheet topomimetics that mimic the

29 hod as an appealing one for the synthesis of calixarene-based neoglycoconjugates.

30 A series of novel calixarene-based tubes comprising different numbers of s

31 le, Meijer's ureidopyrimidinone, Reinhoudt's calixarene bis(rosette), and two molecular clips in CDCl

32 a previously reported crown ether "strapped" calixarene-calixpyrrole ion-pair receptor 1, where Cs(+)

33 Here we demonstrate that macrocyclic calixarenes can disrupt binding of PHD fingers to methyl

34 NO(+) is found encapsulated within the calixarene cavity, and stable charge-transfer complexes

35 dictating which side of the axle pierces the calixarene cavity.

36 The 1,3-alternate calixarene cG 2 was poorly soluble in dry CDCl(3) and ga

37 sent a novel type of substitution pattern in calixarene chemistry showing the wide-ranging possibilit

38 ommonly found in the binding motifs found in calixarene complexes.

39 tes to the clinical development of antitumor calixarene compound 0118.

40 ene-11,23-dicarboxylic acid, two 1:1 dimetal:calixarene compounds have also been made and characteriz

41 eries of mononuclear molybdenum and tungsten calixarene compounds that feature both coordinatively sa

42 The NO(+) guest transfer between two calixarene containers 2 and 5 was achieved and studied b

43 SI) and that the conformation adopted by the calixarene core is crucial for both the selectivity and

44 Cyclodextrin (CD) or calixarene (CX) hosts are attached to four or more trial

45 glycoclusters on rigid molecular platforms (calixarene, cyclodextrin, silsesquioxane, dendrimer), (d

46 des, dendrimers, polymers, oligonucleotides, calixarenes, cyclodextrins, microarrays, vesicles) and t

47 ils, and various organic cyclophanes such as calixarenes, deep cavitands, pillararenes, and tetralact

48 lowed by 3-fold elimination of water yielded calixarene derivatives possessing three exocyclic double

49 Here we used calixarene detergent to solubilize and purify wild-type

50 ethodology gives a straightforward access to calixarenes displaying inherent chirality.

51 e direct introduction of nucleophiles at the calixarene exo rim, has been extended to anionic C-nucle

52 synthesized a number of structurally related calixarenes expressing significant antimycobacterial act

53 salt (Lewis acid) is incorporated within the calixarene-forming reaction, a certain amount of control

54 1 mM and 80 mM for the electrodes made using calixarene free acetonitrile and aqueous solutions, resp

55 M(-1)cm(-2) for the electrode synthesized in calixarene free aqueous solvent.

56 -match toolkit of readily available dyes and calixarene host molecules that can be combined to form d

57 c and structural parameters is provided by a calixarene host that allows the interacting centers to b

58 hanoid salts with a tetrazole-functionalized calixarene in the presence of a simple carboxylate co-li

59 The pKa values for calixarenes in MeCN have been determined by selective ti

60 ent of p-nitrophenol from the phosphorylated calixarene intermediate is conceivably promoted by the "

61 steric bulk and multidentate binding of the calixarenes led to structural stability and to single-si

62 hrough an interplay between the sizes of the calixarene ligands and metal cores.

63 rates of trans- and cis-alkenes showed that calixarene ligands did not restrict access to Ti centers

64 ers persistently coordinated to multidentate calixarene ligands.

65 Three new cyclophanes (calixarene-like macrocyles 8 and 9, as well as crownopha

66 is strongly influenced by the nature of the calixarene linker, that is, CH2, S, and SO2.

67 How big should a calixarene macrocycle be for endo-cavity complexation to

68 ed acid free, high-yielding synthesis of the calixarene macrocycle from the "monomer" p-tert-butylphe

69 e iodo groups of diiodide 6 pass through the calixarene macrocycle; the activation free energy for th

70 exhibit unprecedented use of a C-H bond of a calixarene methylene group as a binding functionality in

71 s on TLR4/MD-2 dimerization, pointing at the calixarene moiety as a potential scaffold for the develo

72 interaction of gaseous nitric oxide with the calixarene moiety.

73 Keto[n]calixarenes (n = 5, 6) were prepared via hydrolysis of t

74 ccur in a unidirectional fashion through the calixarene narrow rim.

75 n the solid state, results in deeply colored calixarene-nitrosonium (NO(+)) complexes.

76 0.1 to near-monolayer coverages (0.025-0.25 calixarene nm(-2)).

77 h their quantitative transformation into the calixarene-NO(+) complex and its use as a nitrosonium tr

78 nce of a Lewis acid, such as SnCl(4), stable calixarene-NO(+) complexes 7 and 8 were isolated in a qu

79 Calixarene-NO(+) complexes can be utilized for the NO(+)

80 grate rapidly around the phenolic rim of the calixarene on the NMR time scale, an observation that is

81 PS, we suggest a direct antagonist effect of calixarenes on TLR4/MD-2 dimerization, pointing at the c

82 ium cluster can be controlled by using three calixarene-phosphine ligands to create a selective nanos

83 its are oriented at the opposite side of the calixarene platform.

84 rtain amount of control over the size of the calixarenes produced can be gained.

85 plementary with that of the lower rim of the calixarene, provides a templating effect.

86 For most calixarene salts cation-pi arene interactions were obser

87 luble perylene-calix[4]arene hybrid with the calixarene scaffold acting as a structure-determining ce

88 receptors depends on the flexibility of the calixarene scaffolds and the electronic nature of the TT

89 ivalent iminosugar architectures directly on calixarene scaffolds is presented, which exploits multip

90 DFT computations show that calixarenes stabilize subnanometer Au11 clusters allowin

91 nthesized that, regardless of the surface or calixarene substituent, demonstrate nearly identical UV-

92 xample, in contrast to the methylene-bridged calixarene system, the thiacalixarene and sulfonylcalixa

93 ssembled ionophores, Rebek's tennis ball and calixarene tetraurea capsule, Meijer's ureidopyrimidinon

94 rdless of the 4-fold reiteration on a single calixarene, the reactions take place with high regio- an

95 ew, we will illustrate the factors that make calixarenes, the cyclic oligomers obtained by the conden

96 lacking strong hydrogen bonds as observed in calixarenes, the two examples introduced here each adopt

97 ctra suggest that the cyclodextrin binds the calixarenes through the hydrophobic alkyl chains.

98 Supporting calixarene-Ti active sites on fully hydroxylated Al2O3 o

99 Calixarene-Ti complexes were grafted onto SiO2 (0.18-0.2

100 is acid catalyst sites consisting of grafted calixarene-Ti(IV) complexes is investigated for controll

101 spectroscopic methods independently detected calixarene-Ti(IV) connectivity before and after epoxidat

102 Calixarene-Ti(IV) precursors were anchored at surface de

103 g titrations revealed a high affinity of the calixarene-TTF receptors for planar electron-deficient g

104 th N,N-dimethylethylenediamine in which each calixarene unit contains a molecule of the amine, (b) a

105 ex with tris(aminomethyl)amine in which each calixarene unit contains one of the three arms of the gu

106 resides in the cavity provided by the three calixarene units acting cooperatively.

107 nt 5,5'-Bicalixarene-based polymer where the calixarene units are seamlessly incorporated in the conj

108 nt steps, which is verified by the lack of a calixarene upper-rim substituent effect on epoxidation r

109 synthetic library of cyclohexapeptidomimetic calixarenes was prepared to identify disrupters of vascu

110 Additionally, a mixture of substituted calixarenes was screened for alkali-metal-binding select

111 Some of these calixarenes were active in inhibiting, in a dose-depende

112 has negligible impact on the geometry of the calixarene, which maintains its pinched shape even when

113 lix[4, 5, 6, and 8]arenes, and in all cases, calixarenes with a single leftover phenolic moiety were