InChI=1S/C21H23N3O2.H2O/c1-15-18(19-4-2-3-5-20(19)23-15)12-13-22-14-17-8-6-16(7-9-17)10-11-21(25)24-26;/h2-11,22-23,26H,12-14H2,1H3,(H,24,25);1H2/b11-10+;