InChI=1/C21H27N3O5/c1-13(2)29-19-11-6-16(12-20(19)28-5)14(3)22-15(4)21(25)23-17-7-9-18(10-8-17)24(26)27/h6-15,22H,1-5H3,(H,23,25)/p+1/t14-,15+/m0/s1/fC21H28N3O5/h22-23H/q+1 93B2F0A92526E1AD