111555-58-9 4,8-Methano-5H-bisbenzofuro(3,2-e:2',3'-g)isoquinoline-1,8a(9H)-diol, 7-(cyclopropylmethyl)-6,7,8,14b-tetrahydro-, (8R-(4bS*,8alpha,8beta,14bbeta))- Naltriben naltrindole benzofuran