A. R1 = H, R2 = CH2-CH2-CH=CH2: (25)-2-[17-(-3-butenyl)-4,5α-epoxy-3-hydroxy-6-methoxy-6α,14-ethano-14α-morfinan-7α-yl]-3,3-dimethyl-2-butanol,
A. R1 = H, R2 = CH2-CH2-CH=CH2: (25)-2-[17-(-3-butenyl)-4,5α-epoxy-3-hydroxy-6-methoxy-6α,14-ethano-14α-morfinan-7α-yl]-3,3-dimethyl-2-butanol,