InChI=1/C16H19N3O5/c20-15(17-9-11-4-2-1-3-5-11)10-18-13-7-6-12(19(22)23)8-14(13)24-16(18)21/h6-8,11H,1-5,9-10H2,(H,17,20)/f/h17H 4694290CF61A48E7