Organic compounds -- part of the class 532-570 series – Organic compounds – Sulfur-oxidation – epimerization – 6-alkoxylation,...
Patent
1991-08-30
1998-05-12
Dees, Jose G.
Organic compounds -- part of the class 532-570 series
Organic compounds
Sulfur-oxidation, epimerization, 6-alkoxylation,...
540205, 540221, 540301, C07D49904
Patent
active
057506841
ABSTRACT:
The present invention provides a process for the substitution of an acylamino .beta.-lactam compound at the carbon atom carrying the acylamino group, which process comprises reacting the .beta.-lactam compound with an halogenating agent and a nucleophilic reagent; characterized in that the acylamino group has an acidic group on the carbon atom adjacent the carbonyl group.
In particular the process of this invention comprises reacting a .beta.-lactam of partial structure (I): ##STR1## where X represents an acidic group; with an halogenating agent and a nucleophilic reagent.
REFERENCES:
patent: 4447602 (1984-05-01), Firestone et al.
The Journal of Organic Chemistry, vol. 38, No. 7, pp. 1436-1437, Apr. 6, 1973.
Journal of the American Chemical Society, vol. 95, No. 7, pp. 2403-2404, Apr. 4, 1973.
Lann et al., Tetrahedron Letters, No. 14, pp. 1311-1313, (1974).
The Journal of Organic Chemistry, vol. 38. No. 7, Apr. 6, 1973, pp. 1436-1437.
Journal of the American Chemical Society, vol. 95, No.7, Apr. 4, 1973, pp. 2403-2404.
W.H.W. Lunn et al.Tetrahedron Letters, No. 14, pp. 1311-1313, (1974).
Geerlandt Herve
Henry Claudine Grand'
Beecham Group plc.
Dees Jos,e G.
Lentz Edward T.
Venetianer Stephen
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