InChI=1/C21H29N3O4S/c1-15-2-3-19(24(25)26)11-20(15)29(27,28)23-6-4-22(5-7-23)21-12-16-8-17(13-21)10-18(9-16)14-21/h2-3,11,16-18H,4-10,12-14H2,1H3 B86F021BF9F9BD48