Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Parahydrogen-Induced Polarization of 1-13C-Acetates and 1-13C-Pyruvates Using Sidearm Hydrogenation of Vinyl, Allyl, and Propargyl Esters. / Salnikov, Oleg G.; Chukanov, Nikita V.; Shchepin, Roman V. и др.
в: Journal of Physical Chemistry C, Том 123, № 20, 23.05.2019, стр. 12827-12840.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
}
TY - JOUR
T1 - Parahydrogen-Induced Polarization of 1-13C-Acetates and 1-13C-Pyruvates Using Sidearm Hydrogenation of Vinyl, Allyl, and Propargyl Esters
AU - Salnikov, Oleg G.
AU - Chukanov, Nikita V.
AU - Shchepin, Roman V.
AU - Manzanera Esteve, Isaac V.
AU - Kovtunov, Kirill V.
AU - Koptyug, Igor V.
AU - Chekmenev, Eduard Y.
PY - 2019/5/23
Y1 - 2019/5/23
N2 - 13C-hyperpolarized carboxylates, such as pyruvate and acetate, are emerging molecular contrast agents for magnetic resonance imaging (MRI) visualization of various diseases, including cancer. Here, we present a systematic study of 1H and 13C parahydrogen-induced polarization of acetate and pyruvate esters with ethyl, propyl, and allyl alcoholic moieties. It was found that allyl pyruvate is the most efficiently hyperpolarized compound from those under study, yielding 21 and 5.4% polarization of 1H and 13C nuclei, respectively, in CD3OD solutions. Allyl pyruvate and ethyl acetate were also hyperpolarized in the aqueous phase using homogeneous hydrogenation with parahydrogen over a water-soluble rhodium catalyst. 13C polarization values of 0.82 and 2.1% were obtained for allyl pyruvate and ethyl acetate, respectively. 13C-hyperpolarized methanolic and aqueous solutions of allyl pyruvate and ethyl acetate were employed for in vitro MRI visualization, demonstrating the prospects for translation of the presented approach to biomedical in vivo studies.
AB - 13C-hyperpolarized carboxylates, such as pyruvate and acetate, are emerging molecular contrast agents for magnetic resonance imaging (MRI) visualization of various diseases, including cancer. Here, we present a systematic study of 1H and 13C parahydrogen-induced polarization of acetate and pyruvate esters with ethyl, propyl, and allyl alcoholic moieties. It was found that allyl pyruvate is the most efficiently hyperpolarized compound from those under study, yielding 21 and 5.4% polarization of 1H and 13C nuclei, respectively, in CD3OD solutions. Allyl pyruvate and ethyl acetate were also hyperpolarized in the aqueous phase using homogeneous hydrogenation with parahydrogen over a water-soluble rhodium catalyst. 13C polarization values of 0.82 and 2.1% were obtained for allyl pyruvate and ethyl acetate, respectively. 13C-hyperpolarized methanolic and aqueous solutions of allyl pyruvate and ethyl acetate were employed for in vitro MRI visualization, demonstrating the prospects for translation of the presented approach to biomedical in vivo studies.
KW - MAGNETIC-RESONANCE
KW - IN-VIVO
KW - SPIN ORDER
KW - HYPERPOLARIZATION
KW - PHIP
KW - TRANSFORMATION
KW - METABOLITES
KW - PRECURSORS
KW - PYRUVATE
KW - LACTATE
UR - http://www.scopus.com/inward/record.url?scp=85066123307&partnerID=8YFLogxK
U2 - 10.1021/acs.jpcc.9b02041
DO - 10.1021/acs.jpcc.9b02041
M3 - Article
C2 - 31363383
AN - SCOPUS:85066123307
VL - 123
SP - 12827
EP - 12840
JO - Journal of Physical Chemistry C
JF - Journal of Physical Chemistry C
SN - 1932-7447
IS - 20
ER -
ID: 20162336