InChI=1/C21H21FN2O5/c1-27-16-9-11(10-17(28-2)21(16)29-3)19-13-6-4-5-12(13)18-15(24(25)26)8-7-14(22)20(18)23-19/h4-5,7-10,12-13,19,23H,6H2,1-3H3/t12-,13-,19+/m0/s1 0629D1DC6F6D0A81