InChI=1S/C23H33NO5/c1-2-3-4-6-10-15-19(25)16-11-8-5-7-9-13-18-14-12-17-20(26)21(18)22(27)24-23(28)29/h4,6,10,12,14-15,17,19,25-26H,2-3,5,7-9,11,13,16H2,1H3,(H,24,27)(H,28,29)/b6-4-,15-10?