Method for producing enantiomeric form of...

Details Method for producing enantiomeric form of... Method for producing enantiomeric form of...

2009-04-06

2011-11-08

Katakam, Sudhakar (Department: 1621)

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

Organic compounds

Carboxylic acid esters

C560S024000, C560S027000

Reexamination Certificate

active

08053590

ABSTRACT:
The invention relates to a method for producing enantiomers form of 2,3-diaminopropionic acid derivatives of formula (I) by asymmetric hydrogenation from compounds of formula (II).

REFERENCES:
patent: 7285560 (2007-10-01), Ritzeler et al.
patent: 2005/0197353 (2005-09-01), Ritzeler et al.
patent: WO 93/09173 (1993-05-01), None
patent: WO 2004/022553 (2004-03-01), None
patent: WO 2004022553 (2004-03-01), None
patent: 2005/113544 (2005-12-01), None
Andrea J. Robinson et al., Highly Enantioselective Synthesis of alpha-Beta-Diaminopropanoic Acid Derivatives Using a Catalytic Asymmetric Hydrogenation Approach, J. Org. Chem. (2001, pp. 4141-4147, vol. 66.
Japanese Office Action dated Mar. 29, 2011 together with English translation.

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