1H-pyrrolo[3,2,1-de]phenanthridin-1-ol, 2,4,5,7,11b,11c-hexahydro-2,9,10-trimethoxy- 2,9,10-trimethoxy-3,12-didehydrogalanthan-1-ol InChI=1/C18H23NO4/c1-21-13-7-11-9-19-5-4-10-6-15(23-3)18(20)16(17(10)19)12(11)8-14(13)22-2/h6-8,15-18,20H,4-5,9H2,1-3H