Method for producing optically active compound

Details Method for producing optically active compound Method for producing optically active compound

2007-07-24

2007-07-24

Saeed, Kamal A. (Department: 1626)

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C548S341500

Reexamination Certificate

active

11451051

ABSTRACT:
The present invention provides a method for producing an optically active β-hydroxy ester compound represented by the general formula:whereinR1represents an optionally substituted hydrocarbon group and the like,R2represents a nitrogen-containing heterocyclic group different from R1, which is represented by the general formula:wherein the ring may be substituted and the like,R3represents an optionally substituted hydrocarbon group and the like,R4and R5represent, the same or different, a hydrogen atom, a halogen atom and the like,the symbol “*” represents an optically active center, which comprises reacting in the presence of a cinchona alkaloid and the like a compound represented by the general formula:wherein R1and R2are as defined above with a compound represented by the general formula:wherein R3, R4and R5are as defined above, and X is a halogen atom.

REFERENCES:
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