InChI=1/C22H31NO4/c1-4-22(2,3)20(26)21(27)23-15-7-9-18(23)19(25)10-6-5-8-16-11-13-17(24)14-12-16/h11-14,18,24H,4-10,15H2,1-3H3/t18-/m0/s1 7D8D7DB61CA68DA1