Pharmaceutically useful compounds

Details Pharmaceutically useful compounds Pharmaceutically useful compounds

2007-02-27

2007-02-27

Witherspoon, Sikarl A. (Department: 1621)

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

Organic compounds

Sulfur containing

C568S063000, C568S379000, C514S690000, C514S706000

Reexamination Certificate

active

11059086

ABSTRACT:
A compound of formula (I) or (II): wherein A is hydrogen or CR1R2; Y and Z are each, independently, hydrogen or a halogen; X is —NR4R5, or R7; R1is hydrogen, or a substituted or unsubstituted alkyl or alkenyl group containing 1–4 carbon atoms; when X is —NR4R5, R2is a substituted or unsubstituted alkyl, alkenyl, alkynyl, aryl, aralkyl aralkenyl, or aralkynyl group, that optionally includes at least one heteroatom in its carbon skeleton and contains 1–12 carbon atoms; when X is R7, R2is an unsubstituted alkyl, alkenyl or alkynyl group, or a substituted or unsubstituted aryl, aralkyl aralkenyl, or aralkynyl group, that optionally includes at least one heteroatom in its carbon skeleton and contains 1–12 carbon atoms; R3is a substituted or unsubstituted alkyl, alkenyl, alkynyl, aryl, aralkyl aralkenyl, or aralkynyl group, that optionally includes at least one heteroatom in its carbon skeleton and contains 1–12 carbon atoms; R4is hydrogen, a substituted or unsubstituted alkyl, alkenyl, alkynyl, aryl, aralkyl aralkenyl, or aralkynyl group, that optionally includes at least one heteroatom in its carbon skeleton and contains 1–12 carbon atoms, —COOR8, or —COR8; R5is hydrogen, or a substituted or unsubstituted alkyl or alkenyl group containing 1–5 carbon atoms; R7is an unsubstituted alkyl, alkenyl, or alkynyl group, that contains 1–4 carbon atoms; and, R8is an unsubstituted or halo-substituted alkyl, aryl, or aralkyl group, that contains 1–12 carbon atoms

REFERENCES:
patent: WO 0056341 (2000-09-01), None
patent: WO 0144254 (2001-06-01), None
Ramesh et al. Enantioselective Synthesis of 4-Aminocyclopent-2-ene-1-one from Tricyclo[5.2.1.0] decenyl Enaminones.□□Tetrahedron Letters, 1998, vol. 39, p. 1429-1432.
Noyori et al. Photochemistry of 2,6-Cycloheptadienones in Strong Acid. Journal of the American Chemical Society, 1972, vol. 94, (12), p. 5105-5106.
Asami et al. An Asymmetric Synthesis of (1S, 4R)-4-Amino-2-cyclopentenol Derivatives. Tetrahedron Letters, 1999, vol. 40, p. 1563-1564.

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