InChI=1/C23H28N2O4/c1-14-19(22(27)29-13-15-7-6-10-28-15)21(16-8-4-5-9-24-16)20-17(25-14)11-23(2,3)12-18(20)26/h4-5,8-9,15,19-21H,1,6-7,10-13H2,2-3H3/t15-,19+,20-,21-/m1/s1 9F656500E8A4B61E