Результаты исследований: Научные публикации в периодических изданиях › обзорная статья › Рецензирование
Synthetic Approaches for 15N-Labeled Hyperpolarized Heterocyclic Molecular Imaging Agents for 15N NMR Signal Amplification by Reversible Exchange in Microtesla Magnetic Fields. / Chukanov, Nikita V.; Shchepin, Roman V.; Joshi, Sameer M. и др.
в: Chemistry - A European Journal, Том 27, № 38, 07.07.2021, стр. 9727-9736.Результаты исследований: Научные публикации в периодических изданиях › обзорная статья › Рецензирование
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TY - JOUR
T1 - Synthetic Approaches for 15N-Labeled Hyperpolarized Heterocyclic Molecular Imaging Agents for 15N NMR Signal Amplification by Reversible Exchange in Microtesla Magnetic Fields
AU - Chukanov, Nikita V.
AU - Shchepin, Roman V.
AU - Joshi, Sameer M.
AU - Kabir, Mohammad S.H.
AU - Salnikov, Oleg G.
AU - Svyatova, Alexandra
AU - Koptyug, Igor V.
AU - Gelovani, Juri G.
AU - Chekmenev, Eduard Y.
N1 - Funding Information: We thank the following for funding support: NSF CHE‐1904780 (E.Y.C.), NCI 1R21CA220137 (E.Y.C.), NIBIB 1R01EB029829 (E.Y.C.). N.V.C. and A.S. acknowledge financial support from RFBR and the government of the Novosibirsk region (19‐43‐540004). O.G.S. and I.V.K. thank RFBR (grants # 19‐29‐10003 and 19‐53‐12013) for the support of catalyst synthesis, and the Russian Ministry of Science and Higher Education for access to NMR/MRI equipment. Publisher Copyright: © 2021 Wiley-VCH GmbH Copyright: Copyright 2021 Elsevier B.V., All rights reserved.
PY - 2021/7/7
Y1 - 2021/7/7
N2 - NMR hyperpolarization techniques enhance nuclear spin polarization by several orders of magnitude resulting in corresponding sensitivity gains. This enormous sensitivity gain enables new applications ranging from studies of small molecules by using high-resolution NMR spectroscopy to real-time metabolic imaging in vivo. Several hyperpolarization techniques exist for hyperpolarization of a large repertoire of nuclear spins, although the 13C and 15N sites of biocompatible agents are the key targets due to their widespread use in biochemical pathways. Moreover, their long T1 allows hyperpolarized states to be retained for up to tens of minutes. Signal amplification by reversible exchange (SABRE) is a low-cost and ultrafast hyperpolarization technique that has been shown to be versatile for the hyperpolarization of 15N nuclei. Although large sensitivity gains are enabled by hyperpolarization, 15N natural abundance is only ∼0.4 %, so isotopic labeling of the molecules to be hyperpolarized is required in order to take full advantage of the hyperpolarized state. Herein, we describe selected advances in the preparation of 15N-labeled compounds with the primary emphasis on using these compounds for SABRE polarization in microtesla magnetic fields through spontaneous polarization transfer from parahydrogen. Also, these principles can certainly be applied for hyperpolarization of these emerging contrast agents using dynamic nuclear polarization and other techniques.
AB - NMR hyperpolarization techniques enhance nuclear spin polarization by several orders of magnitude resulting in corresponding sensitivity gains. This enormous sensitivity gain enables new applications ranging from studies of small molecules by using high-resolution NMR spectroscopy to real-time metabolic imaging in vivo. Several hyperpolarization techniques exist for hyperpolarization of a large repertoire of nuclear spins, although the 13C and 15N sites of biocompatible agents are the key targets due to their widespread use in biochemical pathways. Moreover, their long T1 allows hyperpolarized states to be retained for up to tens of minutes. Signal amplification by reversible exchange (SABRE) is a low-cost and ultrafast hyperpolarization technique that has been shown to be versatile for the hyperpolarization of 15N nuclei. Although large sensitivity gains are enabled by hyperpolarization, 15N natural abundance is only ∼0.4 %, so isotopic labeling of the molecules to be hyperpolarized is required in order to take full advantage of the hyperpolarized state. Herein, we describe selected advances in the preparation of 15N-labeled compounds with the primary emphasis on using these compounds for SABRE polarization in microtesla magnetic fields through spontaneous polarization transfer from parahydrogen. Also, these principles can certainly be applied for hyperpolarization of these emerging contrast agents using dynamic nuclear polarization and other techniques.
KW - Hyperpolarization
KW - magnetic resonance imaging
KW - NMR spectroscopy
KW - parahydrogen
KW - spectroscopy
KW - Magnetic Resonance Imaging
KW - Magnetic Resonance Spectroscopy
KW - Isotope Labeling
KW - Molecular Imaging
KW - Magnetic Fields
UR - http://www.scopus.com/inward/record.url?scp=85105905816&partnerID=8YFLogxK
U2 - 10.1002/chem.202100212
DO - 10.1002/chem.202100212
M3 - Review article
C2 - 33856077
AN - SCOPUS:85105905816
VL - 27
SP - 9727
EP - 9736
JO - Chemistry - A European Journal
JF - Chemistry - A European Journal
SN - 0947-6539
IS - 38
ER -
ID: 28874350