6,14-Ethenomorphinan-7-methanol, alpha-(1,1-dimethylethyl)-4,5-epoxy-18,19-dihydro-3-hydroxy-6-methoxy-alpha-methyl-, (alphaS,5alpha,7alpha)- 78715-23-8 Des(cyclopropylmethyl)buprenorphine N-Desalkylbuprenorphine Norbuprenorphine