7,8-Didehydro-4,5α-epoxy-14-ethoxy-3-methoxy-17-methylmorphinan-6-one
7,8-Didehydro-4,5α-epoxy-14-ethoxy-3-methoxy-17-methylmorphinan-6-one ??
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7,8-Didehydro-4,5α-epoxy-14-ethoxy-3-methoxy-17-methylmorphinan-6-one C??? ??, ??, ??
7,8-Didehydro-4,5α-epoxy-14-ethoxy-3-methoxy-17-methylmorphinan-6-one ?? ?? ? ???
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7,8-Didehydro-4,5α-epoxy-14-ethoxy-3-methoxy-17-methylmorphinan-6-one ?? ??
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