3-O-Methyl Norbuprenorphine

17-DeMethyl-7α-(1-hydroxy-1,2,2-triMethylpropyl)-6,14-endo-ethanotetrahydrothebaine

6,-Ethenomorphinan-7-methanol, alpha-(1,1-dimethylethyl)-4,5-epoxy- 18,19-dihydro-3,6-dimethoxy-alpha-methyl-, (alphaS,5alpha,7alpha)-