1 RM9 (1ar,7bs)-5-fluoro-2-hydroxy-1,1a,2,7b-tetrahydrocyclopropa[C][1,2]benzoxaborinine-4-carboxylic acid 1.000 2 QNA (1~{a}~{R},7~{B}~{S})-5-fluoranyl-2,2-bis(oxidanyl)-1~{a},7~{B}-dihydro-1~{H}-cyclopropa[C][1,2]benzoxaborinine-4-carboxylic acid 0.941