InChI=1S/C18H21NO4.ClH/c1-19-8-7-17-14-10-3-4-12(22-2)15(14)23-16(17)11(20)5-6-18(17,21)13(19)9-10;/h3-4,13,16,21H,5-9H2,1-2H3;1H/t13-,16+,17+,18-;/m1./s1