1 3VU {(3r)-6-[(3-amino-1,2,4-thiadiazol-5-yl)oxy]-1-hydroxy-4,5-dimethyl-1,3-dihydro-2,1-benzoxaborol-3-yl}acetic acid 1.000 2 3VT [(3r)-1-hydroxy-4,5-dimethyl-6-(pyrazin-2-yloxy)-1,3-dihydro-2,1-benzoxaborol-3-yl]acetic acid 0.769