InChI=1/C21H21ClN2O5/c22-15-4-3-5-16(12-15)28-14-20(25)24-13-19(21(26)23-8-10-27-11-9-23)29-18-7-2-1-6-17(18)24/h1-7,12,19H,8-11,13-14H2/t19-/m0/s1 D8D3286C4DC3AA87