Optically active maleimide derivatives, optically active...

Details Optically active maleimide derivatives, optically active... Optically active maleimide derivatives, optically active...

2007-03-06

2007-03-06

McKane, Joseph K. (Department: 1626)

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

Having -c-, wherein x is chalcogen, bonded directly to...

C548S548000

Reexamination Certificate

active

10847289

ABSTRACT:
Optically active maleimide derivatives of the formula:(where the various substituents are as defined in the description) are used as separating media for separating optical isomers and geometrical isomers such as by high performance liquid chromatography.

REFERENCES:
patent: 2003/0069385 (2003-04-01), Kagawa et al.
patent: 1 288 201 (2003-03-01), None
Booker-Milburn, et al., “Intramolecular Photocycloaddition of N-Alkenyl Substituted Maleimides,” Eur. J. Org. Chem., 2001, 1473-1482.
Patent Abstracts of Japan, vol. 2000, No. 21, Aug. 3, 2001 & JP 2001 106729 A, Apr. 17, 2001.
Oishi et al, “Asymmetric Anionic Polymerization of Maleimides Bearing Bulky Substituents”, Journal of Polymer Science, Polymer Chemistry Edition, John Wiley and Sons, New York, vol. 38, No. 2, Jan. 15, 2000; XP000878169.
Oishi et al, “Asymmetric polymerization of N-substituted malemides with chiral oxazolidine-organolithium”, J. Polym Sci Part A; Journal of Polymer Science, Part A: Polymer Chemistry Feb. 15, 1999, John Wiley & Sons Inc., New York, vol. 37, No. 4, Feb. 15, 1999; XP002291802.
Sakota et al, “Photosensitized copolymerization of optically active N-1-menthylmaleimide with styrene amd methyl methacrylate”, Journal of Polymer Science, Polymer Chemistry Edition, 12(8) , 1787-97; XP002291803.
Yamaguchi et al, “Preparation of Optically Active N-Bornyl Maleimide and Poly(N-Bornyl-Maleimide)”, Journal of Polymer Science, Part A, Polymer Chemistry, vol. 8, No. 4, 1970, pp. 929-941; XP002291804.

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