Hoechst Celanese Corporation

Humberto Ramos, Jr

Wei-Jen Peng

Mohammad Aslam

Daniel A Aguilar

John R Durrwachter

A method of performing an NMR diagnostic procedure in a patient in need of the same comprising administering to the patient an effective amount of an NMR diagnostic medium and then exposing the patient to an NMR measurement step to which the diagnostic medium is responsive thereby imaging at least a portion of the patient's body, wherein the diagnostic medium comprises a composition of matter which contains a compound which has the structural formula: ##STR1## wherein R, R.sub.1 -R.sub.10 and M are defined herein.

MRI diagnostic procedures using tripodal pyridinyl metal complexes

Novel precursors of ligands or use in MRI contrast agents and which have the formula ##STR1## wherein R.sub.2-R.sub.10 are defined herein.

Thio-substituted pyridines as MRI ligand precursors

A composition of matter having the following ##STR1## wherein R, R.sub.1 -R.sub.10 and M are defined herein.

Tripodal pyridine ligands as MRI contrast agents

Substituted phenethanol ethers are prepared in useful yields by the etherification of corresponding substituted phenethyl alcohols with aliphatic primary alcohols. The etherification is carried out by reacting a substituted phenethyl alcohol with an aliphatic primary alcohol in the presence of an acid catalyst at a temperature of at least about 75.degree. C.

Growing community of inventors

Corpus Christi, TX, United States of America

Humberto Ramos, Jr