Method for preparing intermediates useful in synthesis of...

Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...

Reexamination Certificate

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C548S465000, C548S517000, C549S215000

Reexamination Certificate

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06974876

ABSTRACT:
A synthesis is described for intermediates which are readily amenable to the large scale preparation of hydroxyethylurea-based chiral HIV protease inhibitors. The method includes forming a diastereoselective epoxide from a chiral alpha amino aldehyde.

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