125828-20-8 3-Fpnd 6,14-Ethenomorphinan-7-methanol, 4,5-epoxy-17-(3-fluoropropyl)-18,19-dihydro-3-hydroxy-6-methoxy-alpha,alpha-dimethyl-, (5alpha,7alpha)- N-(3-(18F)-Fluoropropyl)-N-nordiprenorphine N-(3-Fluoropropyl)-N-nordiprenorphine