Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Reexamination Certificate
2007-08-28
2007-08-28
Shameem, Golam M. M. (Department: 1626)
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
Reexamination Certificate
active
10916954
ABSTRACT:
The compound (R)-(1′-benzyl-3-bromo-[1,3′]bipyrrolidinyl-2-one) which is an intermediate for antibacterial vinylpyrrolidinone-cephalosporin derivatives.
REFERENCES:
patent: 5804577 (1998-09-01), Hebeisen et al.
patent: 5981519 (1999-11-01), Angehrn et al.
patent: 849 269 (1998-06-01), None
Jacques Maddaluno et al., “Handy Access to Chiral N, N′-Disubstituted 3-Aminopyrrolidines,” Tetrahedron: Asymmetry, 1992, vol. 3, No. 10, p. 1239-1242.
Basilea Pharmaceutica AG
Shameem Golam M. M.
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