Tetrahedron Letters p. 339 - 342 (1985)
Update date:2022-08-05
Topics: Epimerization Reaction Conditions Analytical Techniques Chemical Reagents Experimental procedure
Aoki, T.
Haga, N.
Sendo, Y.
Konoike, T.
Yoshioka, M.
Nagata, W.
7α-Amino-1-oxacephems can be epimerized to their 7β-amino epimers by treatment with chloral to give Schiff bases, followed by dehydrochlorination with Huenig base, borohydride reduction, and hydrolysis.
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