Direct Determination of NMR Correlation Times: Analysis of the Cd−CyDTA Complex by the Relaxation Rate Ratio Method
摘要:
The relaxation rate ratio method (RRR) has been used to calculate molecular correlation times, tau(c), from the C-13 and Cd-113 relaxation rates of cadmium-cyclohexanediamine tetraacetate (CyDTA). The ratio of spin-spin (R-2) relaxation rates to spin-lattice (R-1) relaxation rates (R-2/R-1) is used to determine the relative motion of specific nuclei within the Cd-CyDTA complex. Formation of the Cd-CyDTA complex results in an increase in the measured NMR rotational correlation times compared with the values obtained for the CyDTA ligand alone. C-13 chemical shifts, evidence of Cd-113-N-14 coupling and NMR rotational correlation times provide information concerning the geometry of the Cd-CyDTA complex. The NMR experimental results correlate with anhydrous, hydrated, and hydroxylated ab initio structures of the Cd-CyDTA complex.
[EN] METAL TRICARBONYL COMPLEXES COMPRISING SUBSTITUTED IMINODIACTIC ACID LIGANDS AND USES AS RADIOISOTOPE TRACERS<br/>[FR] COMPLEXES DE TRICARBONYLE MÉTALLIQUE COMPRENANT DES LIGANDS D'ACIDE IMINODIACÉTIQUE SUBSTITUÉS ET UTILISATIONS EN TANT QUE MARQUEURS RADIO-ISOTOPIQUES
申请人:UNIV EMORY
公开号:WO2016145156A1
公开(公告)日:2016-09-15
This disclosure relates to compositions comprising substituted iminodiacetic acid ligands and metal tricarbonyl complexes containing the ligands and derivatives thereof. In certain embodiments, the metal tricarbonyl complexes are used as radioisotope tracers such as renal tracers. In certain embodiments, the metal complexes comprise 99mTc or Re. In certain embodiments, the ligands are substituted with a fluorine, a fluorine-18(F18) radioisotope, or other radionuclide.
[EN] METHYLSULFONAMIDE DERIVATIVES AND USES RELATED THERETO<br/>[FR] DÉRIVÉS DE MÉTHYLSULFONAMIDE, ET UTILISATIONS ASSOCIÉES
申请人:UNIV EMORY
公开号:WO2017023999A1
公开(公告)日:2017-02-09
This disclosure relates to methylsulfonamide derivatives and uses as imaging agents and other uses related to CXCR4 inhibition. In certain embodiments, the disclosure relates to pharmaceutical compositions comprising compounds disclosed herein, derivatives, or pharmaceutically acceptable salts or prodrugs thereof. In certain embodiments, the compositions disclosed herein are used for imaging to study CXCR4 related conditions.
Recording sheets containing amino acids, hydroxy acids, and polycarboxyl compounds
申请人:XEROX CORPORATION
公开号:EP0667246A1
公开(公告)日:1995-08-16
A recording sheet which comprises a paper substrate and a material selected from the group consisting of monomeric amino acids, monomeric hydroxy acids, monomeric polycarboxyl compounds, and mixtures thereof. Another embodiment of the present invention is directed to a recording sheet which comprises a substrate and a material selected from the group consisting of monomeric amino acids, monomeric hydroxy acids, and mixtures thereof.