The first anionic sulfonamide-binding zinc(II) complexes with a macrocyclic triamine: chemical verification of the sulfonamide inhibition of carbonic anhydrase
A zinc(II) complex with 1-(3-(p-toluensulfonamido)propyl)-1,5,9-triazacycloundecane («tosylamidopropyl[12]aneN 3 », L 2 ), has been synthesized as a model for sulfonamide inhibition of carbonic anhydrase (CA). X-ray crystal structure analysis showed a distorted tetrahedral structure.
锌 (II) 与 1-(3-(p-toluensulfonamido) 丙基)-1,5,9-三氮杂环十一烷 («tosylamidopropyl[12]aneN 3 », L 2 ) 配合物已合成为磺胺抑制模型碳酸酐酶 (CA)。X-射线晶体结构分析显示扭曲的四面体结构。
Bates, George B.; Parker, David, Journal of the Chemical Society. Perkin transactions II, 1996, # 6, p. 1109 - 1116
作者:Bates, George B.、Parker, David
DOI:——
日期:——
Attachment of 1,5,9-Triazacyclododecane and β-Cyclodextrin to Poly(ethylenimine) in Proximity by Site-Directed Functionalization
作者:Sung Min Kim、In Seok Hong、Junghun Suh
DOI:10.1006/bioo.1998.1088
日期:1998.6
A novel methodology for the site-directed introduction of a functional group in the vicinity of beta-cyclodextrin (CD) on the backbone of branched poly(ethylenimine) (PEI) is developed. Site-directed or random attachment of 1,5,9-triazacyclododecane (TC) to CD-containing PEI followed by acetylation of the primary and secondary amines of the polymer backbone produced [TC-CD](AcPEI)-Ac-SD or [TC-CD](Ran) AcPEI, respectively. By the addition of Ni(II), Cu(II), or Zn(II) ion, [M(II)TC-CD](SD) AcPEI or [M(II)TC-CD](AcPEI)-Ac-Ran was obtained. The formation constant for the complexation of a hydrophobic ester revealed that the TC portion was indeed positioned in the vicinity of the CD cavity in [M(II)TC-CD](SD) AcPEI. Compared with [M(II)TC-CD](Ran) AcPEI, [M(II)TC-CD]SDAcPEI appears to exert an extra stabilization effect (-Delta Delta G degrees = 1.0-1.3 kcal/mol) on the complexed ester by hydrogen bonding between the metal-bound water of the polymer and the carbonyl group of the ester. (C) 1998 Academic Press.
Ligands designed to impose tetrahedral co-ordination: a convenient route to aminoethyl and aminopropyl pendant arm derivatives of 1,5,9-triazacyclododecane
作者:Simon C. Rawle、Adam J. Clarke、Peter Moore、Nathaniel W. Alcock
DOI:10.1039/dt9920002755
日期:——
The macrocyclic ligands 1-(2-aminoethyl)- (L1) and 1-(3-aminopropyl)-1,5,9-triazacyclododecane (L2) have been synthesised from 2,4-dioxo-1,5,9-triazacyclododecane, and the complexes [ZnL1(OClO3)]ClO4 (trigonal bipyramidal) and [NiL2(NCS)2] (octahedral) characterised by X-ray crystallography; L1 and L2 form more stable complexes than do analogues bearing tertiary amino groups on the pendant arms, but allow higher co-ordination numbers.
HELPS, IAN M.;PARKER, DAVID;JANKOWSKI, KARL J.;CHAPMAN, JAMES;NICHOLSON, +, J. CHEM. SOC. PERKIN TRANS. PT 1,(1989) N1, C. 2079-2082
作者:HELPS, IAN M.、PARKER, DAVID、JANKOWSKI, KARL J.、CHAPMAN, JAMES、NICHOLSON, +