Figure 5
From: Signal amplification by reversible exchange for COVID-19 antiviral drug candidates
Hyperpolarized signals from chloroquine (upper structure, single scan in 300 MHz 1H NMR, 30° pulse of 1H after polarization in 90 G magnetic field) and hydroxychloroquine (low structure, single scan in 300 MHz 1H NMR, 30° pulse of 1H after polarization in 110 G magnetic field) after SABRE.
