reagent article 14 controlled study 12 reaction analysis 8 addition reaction 6 analytic method 6 chirality 6 human 6 nonhuman 6 Animals 4 Grignard reaction 4 Nitric Oxide 4 Nitric Oxide Donors 4 Nitrites 4 Nitrogen Oxides 4 aldehyde 4 catalysis 4 chemical analysis 4 chemical reaction kinetics 4 chemical structure 4 complex formation 4 conference paper 4 enantioselectivity 4 heparin 4 human cell 4 nitric oxide 4 normal human 4 priority journal 4 unclassified drug 4 1h 1,2,4 oxadiazolo[4,3 a]quinoxalin 1 one 2