ライフサイエンスコーパス: ansa

1 zed with 5-amino-2-naphthalenesulfonic acid (ANSA).

2 In AnsA, (2,7-aza)Trp exhibits prominent green N(7)-H emiss

3 valent of FeCl2 produced the hybrid complex, ansa-(2-(CH2)2)-(1-eta(5)-C5H4-closo-1,2,3,4-C3B7H9)Fe (

4 )(1-) rings are linked to make a new type of ansa-allyl-cyclopentadienyl dianion that binds as a pent

5 It is shown that ansa-aminoborane tweezers QCAT provided (20-30)-fold sig

6 water-catalyzed proton-transfer properties, AnsA and AnsB are shown to have drastically different lo

7 cant environment in the proximity of Trp for AnsA and AnsB, respectively.

8 spectral variations of (2,7-aza)Trp between AnsA and AnsB.

9 uctural homology isozymes L-asparaginases I (AnsA) and II (AnsB), which are shown via fluorescence sp

10 (CH(2))(3)NPh]Cl(2)(THF)(2) (5) with lithium ansa-bis-indenyl reagents Li(2)[XBI](Et(2)O) (XBI = (1-i

11 a three-carbon chain, the [CH(2)CH(2)CH(2)] ansa bridge becomes electron-donating.

12 age achieved by MeLi, Bu(n)Li, and PhLi, the ansa bridge of [Me(2)Si(Cp(Me(2)))(2)]W(H)Cl is inert to

13 awing effect observed for a single [Me(2)Si] ansa bridge, a pair of vicinal [Me(2)Si] ansa bridges ex

14 m C-Si cleavage and functionalization of the ansa bridge, namely (Cp(Me(2)))(eta(5),kappa(1)-C(5)H(2)

15 and complete the preparation of the tricylic ansa-bridged azafulvene core 32.

16 The analogous reaction of the ansa-bridged complex Me2C(eta(5)-C5H4)2Zr[2,5-(Me3Si)2-3

17 Ansa-bridged prodiginines are bioactive pigments produce

18 The electronic influence of unbridged and ansa-bridged ring substituents on a zirconocene center h

19 Si] ansa bridge, a pair of vicinal [Me(2)Si] ansa bridges exerts an electron-donating effect relative

20 Ansa bridges with single-atom linkers, for example [Me(2

21 ron-donating effect of two vicinal [Me(2)Si] ansa bridges, relative to that of a single bridge, is a

22 drawing effect of the [Me(2)C] and [Me(2)Si] ansa-bridges is due to stabilization of the cyclopentadi

23 an increase in N(7)-H emission intensity in AnsA but no obvious spectral changes in AnsB.

24 rabistricarbadecaboranyl sandwich complexes, ansa-(CH2)2-(closo-C3B7H9)2Fe (4, 5 and 6).

25 tion of 2 with FeCl2 produced three isomeric ansa-(CH2)2-ferrabistricarbadecaboranyl sandwich complex

26 re where the ring and cage are linked by the ansa -CH2CH2- group with attachment to the cage at the C

27 ricarbadecaboranyl ligands are linked by the ansa-CH2CH2- group at the C2 and C2' cage carbons, where

28 equence to assemble the fully functionalized ansa chain of the natural products.

29 imilarities between the saliniketals and the ansa chain of the potent rifamycin antibiotics, which co

30 Among the 12 C(s)-ligated ansa-cyclopentadienyl (Cp)-R(2)E(C,Si)-fluorenyl (Flu) g

31 of the N2 carboxylation is controlled by the ansa-cyclopentadienyl ligand where the sterically demand

32 , strong intrinsic quenching of Nile red and ANSA dye fluorescence is observed on binding to a cytoch

33 gation and X-ray crystallography reveal that AnsA forms a tetrameric structure as a dimer of two inti

34 ) with a hypothetical 15.5kDa protein in the ANSA-GAP intergenic region (yeaA) of Escherichia coli, a

35 The expression of the ansA gene, which encodes the second L-asparaginase, was

36 In the case of the ansa-hafnocene dinitrogen complex, replacing the dihydro

37 The ansa-hafnocene variant, [Me(2)Si(eta(5)-C(5)Me(4))(eta(5

38 r system, a wide-angle (WA) view of the ring ansa in forward-scattered light (FDS 20693.02).

39 Kinetic analysis of the enzyme reveals that AnsA is positively cooperative, displaying a sigmoidal s

40 AnsA is the cytoplasmic asparaginase from Escherichia co

41 The negative charge imparted by the ANSA label facilitated the analysis of the oligosacchari

42 The ANSA label was demonstrated to provide superior resoluti

43 g that the so-called anterior nucleus of the ansa lenticularis (ALa) is the avian homolog of mammalia

44 egmenti, whereas the anterior nucleus of the ansa lenticularis in the avian diencephalon was renamed

45 ry, do not course ventromedially to form the ansa lenticularis, but rather, travel predominately medi

46 have been used to form the first examples of ansa-metallatricarbadecaboranyl complexes.

47 in the presence of enantiopure C1-symmetric ansa metallocene, {1,2-(SiMe2)2(eta5-C5H-3,5-(CHMe2)2)(e

48 e (5) and a method for its conversion to the ansa-metallocene [ethylene(eta5-inden-1-yl)(eta5-inden-2

49 ts, and ligand substitution pattern-cationic ansa-metallocene ester enolate catalyst 6(+)[B(C(6)F(5))

50 Stereoblock polymerization with chiral ansa-metallocene/strong Lewis acid hybrid catalysts capa

51 yclopentadienyl ligands together in strained ansa metallocenes are rare and limited to carbon-carbon

52 overall reductive elimination of RH from the ansa-molybdenocene and -tungstenocene complexes [Me(2)Si

53 The ansa-naphthalene moieties of the benzoxazinorifamycins b

54 erebellar peduncle, thalamic fasciculus, and ansa peduncularis from the parabrachial nuclei.

55 The ansA repressor, AnsR, was shown to negatively regulate i

56 , depending upon the linking position of the ansa-tether, constraints in cage-orientation, such as ob

57 The key step in the synthesis of the title ansa-titanocene (4) features a previously unreported equ

58 enation of the product metallocene furnishes ansa-titanocene 4.

59 A series of ansa-titanocene triflate complexes are described as mode

60 )(2)]WCl(2) provides a means to access other ansa tungstenocene compounds, such as [Me(2)Si(Cp(Me(2))

61 h organolithium reagents do not yield simple ansa tungstenocene derivatives.

62 Labeling with ANSA was also determined to be advantageous in the chara

63 Ring-bridged ansa-zirconocene dichlorides, Me(2)E(R(n)C(5)H(4-n))(2)Z

64 Treatment with excess Me3SiI furnished the ansa-zirconocene diiodide along with the N,N'-dicarboxyl

65 Addition of 2 equiv of carbon dioxide to the ansa-zirconocene dinitrogen complex resulted in selectiv

66 ction cleanly produces the isolable cationic ansa-zirconocene ester enolate complex rac-(EBI)Zr(+)(TH

67 aracterization, and abstraction chemistry of ansa-zirconocene ester enolate complexes relevant to the

68 ate in toluene produce the first examples of ansa-zirconocene mono- and diester enolate complexes: ra

69 of polar divinyl monomers, enabled by chiral ansa-zirconocenium catalysts through an enantiomorphic-s

70 The chloro-bridged heterodinuclear ansa-zirconocenium cation [(SBI)Zr(mu-Cl)2AlMe2](+) (SBI

71 In contrast, ethylene-bridged-ansa-zirconocenium ester enolate 1 is highly active and

72 Silyl-bridged-ansa-zirconocenium ester enolate 2 has been synthesized