InChI=1/C18H21N3/c1-12-8-10-15(11-9-12)18(13(2)19)21-14(3)20-16-6-4-5-7-17(16)21/h4-11,13,18H,19H2,1-3H3/p+1/t13-,18+/m0/s1/fC18H22N3/h19H/q+1 8D52729CC85B2E57