Photoswitchable Magnetic Resonance Imaging Contrast by Improved Light-Driven Coordination-Induced Spin State Switch
摘要:
We present a fully reversible and highly efficient on-off photoswitching of magnetic resonance imaging (MRI) contrast with green (500 nit), and violet-blue (435 nm) light. The contrast change is based on inframolecular light-driven coordination-induced spin state switch (LD-CISSS), performed with azopyridine-substituted Ni-porphyrins. The relaxation time Of the solvent protons in 3 mM solutions of the azoporphyrins in DMSO was switched between 3.5 and 1.7 s. The relaxivity of the contrast agent changes by a factor of 6.7. No fatigue or side reaction was observed, even after >100 000 switching cycles in air at room temperature. Electron-donating substituents at the pyridine improve the LD-CISSS in two ways: better photostationary states are achieved, and intramolecular binding is enhanced.
Furo- and thieno-pyridine carboxamide compounds useful as pim kinase inhibitors
申请人:Incyte Corporation
公开号:US10000507B2
公开(公告)日:2018-06-19
The present disclosure describes furo- and thieno-pyridine carboxamide compounds, as well as their compositions and methods of use. The compounds inhibit the activity of the Pim kinases, and are useful in the treatment of diseases related to the activity of Pim kinases including, e.g., cancer and other diseases.
FURO- AND THIENO-PYRIDINE CARBOXAMIDE COMPOUNDS USEFUL AS PIM KINASE INHIBITORS
申请人:Incyte Corporation
公开号:US20170190716A1
公开(公告)日:2017-07-06
The present disclosure describes furo- and thieno-pyridine carboxamide compounds, as well as their compositions and methods of use. The compounds inhibit the activity of the Pim kinases, and are useful in the treatment of diseases related to the activity of Pim kinases including, e.g., cancer and other diseases.