InChI=1S/C21H29N3O3S/c1-15(2)28(26,27)22-11-7-13-24-17-9-4-3-8-16(17)20-19(25)14-23-12-6-5-10-18(23)21(20)24/h3-4,8-9,15,18,22H,5-7,10-14H2,1-2H3/t18-/m0/s1