InChI=1/C18H29NO4S/c1-17(2,22-4)15-7-9-16(10-8-15)24(20,21)19-13-6-11-18(3,23-5)12-14-19/h7-10H,6,11-14H2,1-5H3/t18-/m1/s1 4C4B8A6B89B396E6