Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acid esters
Reexamination Certificate
2006-12-12
2006-12-12
Tucker, Zachary C. (Department: 1624)
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acid esters
Reexamination Certificate
active
07148371
ABSTRACT:
The present invention provides a method for industrially producing an optically active lysine derivative useful as a pharmaceutical intermediate. More particularly, the present invention provides a production method including protecting an amino group or an amino group and carboxyl group of optically active 2-amino-6-methyl-6-nitroheptanoic acid with a protecting group, reducing a nitro group to synthesize a 6,6-dimethyl lysine derivative and reacting the 6,6-dimethyl lysine derivative with an acetic acid derivative.
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Izawa Kunisuke
Naito Masaki
Nakazawa Masakazu
Takahashi Daisuke
Ajinomoto Co. Inc.
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
Tucker Zachary C.
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