Work

Synthetic approach for unsaturated precursors for parahydrogen induced polarization of choline and its analogs

Year: 2013

Type: article

Abstract: Reported here are (i) a new synthetic approach for preparation of (ii) a new compound class, of -OH, for example, an -OH group is replaced with acetyl protecting group, protected 1,2-dehydrocholine analogs and (iii) a new synthetic route for betaine aldehyde. The CC bond of 1,2-dehydrocholine moiety can be used for molecular addition of parahydrogen producing -OH protected hyperpolarized choline by parahydrogen-induced polarization (PHIP). The reported synthetic approach allows for incorporation of (15) N and deuterium labels, which are necessary for preparation of highly polarized PHIP contrast agents. Isotope labeling with (15) N and/or deuterium was conducted. Hyperpolarized (15) N-choline enabled by the reported synthetic approach can be potentially used as an imaging biomarker of cancer similar to choline positron emission tomography tracers.

Source: Journal of Labelled Compounds and Radiopharmaceuticals

DOI: 10.1002/jlcr.3082

Authors: Roman V. Shchepin, Eduard Y. Chekmenev

Institution: Vanderbilt University

Language: English

Topic: Advanced NMR Techniques and Applications

Subfield: Spectroscopy

Field: Chemistry

Domain: Physical Sciences

SDG: Good health and well-being

Open Access status: green

Funders: National Institutes of Health, National Cancer Institute, National Center for Research Resources