Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1984-04-06
1986-06-24
Rizzo, Nicholas S.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
514192, 514194, 260239A, C07D49900, A61K 31425
Patent
active
045966770
ABSTRACT:
A novel stereocontrolled process is disclosed for converting 6-aminopenicillanic acid to an optically active azetidinone of the formula ##STR1## wherein R" is a hydroxy-protecting group by use of a 6,6-dihaloanhydropenicillin or 6,6-bis(phenylselenyl)anhydropenicillin intermediate.
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Heterocycles 17: 201-207 (1982) Hirai et al.
J. Org. Chem. 42: 2960-2965 (1977) DiNinno et al.
Tetrahedron Letters 23(39): 4021-4024 (1982) Hirai et al.
Tetrahedron Letters 23(22): 2293-2296 (1982) Reider et al.
Chem. Pharm. Bull 29(11): 3158-3172 (1981) Hayashi et al.
Daris Jean-Paul
Martel Alain
Bristol-Myers Company
Morse David M.
Rizzo Nicholas S.
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