DiL-lysine monosulfate trihydrate crystal and method of making

Details DiL-lysine monosulfate trihydrate crystal and method of making DiL-lysine monosulfate trihydrate crystal and method of making

2007-01-09

2007-01-09

Kunemund, Robert (Department: 1722)

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

Organic compounds

Carboxylic acids and salts thereof

C117S068000, C117S070000, C117S925000, C117S927000

Reexamination Certificate

active

10736511

ABSTRACT:
A diL-lysine monosulfate trihydrate crystal which has a large tabular form and is more easily separable from the mother liquor. The crystal is obtained by a novel process of conducting crystallization at a lower temperature.

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Roth et al., “Biological Efficiency of L-Lysine Base and L-Lysine Sulphate Compared with L-Lysine HCl in Piglets”; Agribio.Res., 1994, vol. 47 No. 2, pp. 177-186.
Aketa, K. et al., “Stereochemical Studies. XL. A Biomimetic Conversion of L-Lysine into optically Active 2-Substituted Piperidines. Synthesis of D- and L-Pipecolic Acid, and (S) (+)-Coniine from L-Lysine”; Chem. Pharm. Bull., 1976, vol. 24, No. 4, pp. 621-631.
International Search Report for PCT Appl. No. PCT/JP2004/019465 (Apr. 26, 2005).

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