InChI=1/C14H18N2O2/c1-11(4-9-14(17)15-18)10-12-5-7-13(8-6-12)16(2)3/h4-10,18H,1-3H3,(H,15,17)/b9-4+,11-10+/f/h15H 37758EBE7F18BB97