Process of enantiomeric separation of carbacephem intermediates

Details Process of enantiomeric separation of carbacephem intermediates Process of enantiomeric separation of carbacephem intermediates

1991-07-23

1992-08-25

Beach, Mark L.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D205085, C07B 5700

Patent

active

051420384

ABSTRACT:
Enantiomerically pure .beta.-lactam intermediates of the formula (I) ##STR1## are isolated from a haloalkane solvent through precipitation with methyl-t-butyl ether or methanol. The products thus obtained are key intermediates in the synthesis of antibiotic aagents. The process is appropriate for large scale production.

REFERENCES:
patent: 4708956 (1987-11-01), Hirata et al.
C. C. Bodurow et al., Tetrahedron Letters, vol. 30, No. 19, pp. 2321-2324 (1989).

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