InChI=1/C5H7FO2/c1-8-5(7)3-2-4(3)6/h3-4H,2H2,1H3/t3-,4+/m0/s cyclopropanecarboxylic acid, 2-fluoro-, methyl ester, (1R,2R)- methyl (1R,2R)-2-fluorocyclopropanecarboxylate