Highly selective process for the preparation of enantiomerically

Details Highly selective process for the preparation of enantiomerically Highly selective process for the preparation of enantiomerically

1997-07-16

1998-12-15

Davis, Zinna Northington

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D21180

Patent

active

058499245

ABSTRACT:
The present invention relates to a new highly selective process for the preparation of enantiomerically pure halogeno-phenyl-substituted 1,4-dihydropyridine-3,5-dicarboxylic esters of the general formula (I) ##STR1## in which R.sup.1 to R.sup.3 have the meanings given in the description.

REFERENCES:
patent: 3932646 (1976-01-01), Meyer et al.
V.S. Goldman, et al., Angew. Chem., vol. 103, pp. 1587-1605, (1991).
A. Bernardi, et al., Tetrahedron Letters, vol. 31, No. 34, pp. 4949-4952, (1990).
W.J. Klaver, et al., J. Am. Chem. Soc., vol. 111, pp. 2588-2595, (1989).

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