- Synthesis of Nalmefene
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(CAS NO.: ), with its systematic name of Morphinan-3,14-diol, 17-(cyclopropylmethyl)-4,5-epoxy-6-methylene-, (5alpha)-, could be produced through many synthetic methods.
Following is one of the synthesis routes:
By a Wittig reaction at naltrexone (I) with triphenylmethylphosphonium bromide (II) in DMSO in the presence of NaH as base.
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