6,11-methano-6H-benzo[b]-1,3-benzodioxolo[5,6-e]azepine-7,8-diol, 5,6a,7,8,9,11-hexahydro-, (6aR,7S,8S,11S)- InChI=1/C16H17NO4/c18-12-2-1-9-11-6-17(15(9)16(12)19)5-8-3-13-14(4-10(8)11)21-7-20-13/h1,3-4,11-12,15-16,18-19H,2,5-7H2/t11-,12+,15-,16-/m1/s Nangustine rel-(6aR,7S,8S,11S)-5,6a,7,8,9,11-hexahydro-6,11-methanobenzo[b][1,3]benzodioxolo[5,6-e]azepine-7,8-diol