Methods for the synthesis of alfentanil, sufentanil, and...

Details Methods for the synthesis of alfentanil, sufentanil, and... Methods for the synthesis of alfentanil, sufentanil, and...

2007-04-24

2007-04-24

Morris, Patricia L. (Department: 1625)

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

Reexamination Certificate

active

11362498

ABSTRACT:
Synthetic pathways are disclosed for synthesizing derivatives or analogs of fentanyl. Specifically set out are pathways for synthesizing alfentanil, sufentanil and remifentanil. The disclosed methods require fewer steps and produce a greater yield of product than methods reported in the prior art.

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