1,3,4 substituted and bicyclic derivatives of 2-azetidinones and

Details 1,3,4 substituted and bicyclic derivatives of 2-azetidinones and 1,3,4 substituted and bicyclic derivatives of 2-azetidinones and

1994-03-16

1995-09-26

Berch, Mark L.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

540354, 540358, 540359, 540360, 540364, C07D205095, C07D20512, C07D205085

Patent

active

054535026

ABSTRACT:
The invention provides 1,3,4 substituted and bicyclic derivatives of 2-azetidinones and processes therefor. These compounds are valuable intermediates useful in the preparation of 1-carba(dethia)cephalosporin antibiotics.

REFERENCES:
patent: 4057540 (1977-11-01), Micetich
patent: 4939249 (1990-07-01), Blaszczak
patent: 5126446 (1992-06-01), Brown et al.
Hatanaka, Tet. Letters 24, pp. 4837-4838. (1983).
L. Blaszczak et al., Tetrahedron Letters, 31(40):5693-5696 (1990).
S. Hanessian et al., Tetrahedron Letters 27(40):4857-4860 (1986).
C. Whitesitt et al., Tetrahedron Letters, vol. 20, pp. 1737-1740 (1978).
A. Beckwith et al., J. Chem. Soc., Chem. Commun., pp. 189-190 (1986) "Stereochemistry of Intramolecular Homolytic Substitution at the Sulphur Atom of a Chiral Sulphoxide".
T. Kamestani et al., J. Org. Chem. 53:2683-2687 (1988).
K. P. Lund et al., (Abstract No. 387 Am. Chem. Soc., Div. of Org. Chem., 207th ACS National Meeting, San Diego, Calif., Mar. 13-17, 1994.

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