Chemistry: molecular biology and microbiology – Micro-organism – tissue cell culture or enzyme using process... – Preparing alpha or beta amino acid or substituted amino acid...
Reexamination Certificate
2007-07-03
2007-07-03
Lilling, Herbert J. (Department: 1657)
Chemistry: molecular biology and microbiology
Micro-organism, tissue cell culture or enzyme using process...
Preparing alpha or beta amino acid or substituted amino acid...
C435S106000, C435S129000, C435S197000, C435S198000, C514S561000, C562S553000
Reexamination Certificate
active
11514738
ABSTRACT:
The instant invention describes a novel reaction that includes spontaneous racemization of an azalactone via enol tautomerization. This racemization results in improved yield and ee over other reactions previously described.
REFERENCES:
patent: 2005/0234128 (2005-10-01), Devine et al.
Moore Jeffrey C.
Truppo Matthew D.
Beeler Nicole M.
Lilling Herbert J.
Merck & Co. , Inc.
Muthard David A.
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