Organic compounds -- part of the class 532-570 series – Organic compounds – Cyclopentanohydrophenanthrene ring system containing
Reexamination Certificate
2007-05-08
2007-05-08
Badio, Barbara P. (Department: 1617)
Organic compounds -- part of the class 532-570 series
Organic compounds
Cyclopentanohydrophenanthrene ring system containing
Reexamination Certificate
active
10416029
ABSTRACT:
The invention relates to a method for the production of 4-(17α substituted 3-oxoestra-4,9-dien-11β-yl)benzaldehyd-(1E or 1Z)-oximes of general formula (I), where R1═H, C1-6alkyl or a CnF2n+1group; R2═C1-4alkyl, X=E- or Z-OH; and Y═O—C1-6alkyl, S—C1-6alkyl or O—CH2CnF2n+1, where n=1, 2 or 3, which produces the target compounds of formula (I) with high yield and selectivity.
REFERENCES:
patent: 5576310 (1996-11-01), Schubert et al.
patent: 5693628 (1997-12-01), Schubert et al.
patent: 0648778 (1995-04-01), None
Sova et al., “Modification of steroids in the androstane series with three-membered heterocycles at C(17).” Khimiko-Farmatsevticheskii Zhurnal, vol. 23(9), pp. 1088-1091, 1989, English Abstract only.
Journal of the American Chemical Society; vol. 84, Oct. 5, 1962 No. 19, pp. 3782-3783.
C. Rücker et al., “Funktionalisierte Dioxide (syn-1,3) und Trioxide (syn, syn; syn, anti) des Tropilidens,” Chemische Berichte., 1984, pp. 1801-1833, vol. 117, No. 5, XP002197491, Verlag Chemie GmbH, Weinheim, DE, ISSN: 0009-2940; p. 1816, example 37,50; p. 1830, abstract 5. English Abstract Only.
W. Seppelt et al., “Funktionalisierte Dioxide (syn-1,4) und Trioxide (anti, anti) des Tropilidens,” Chemische Berichte, 1984, pp. 1834-1855, vol. 117, No. 5, XP002197492, Verlag Chemie GmbH, Weinheim, DE, ISSN: 0009-2940; p. 1837, example 11,13; p. 1838, example 3,15. English Abstract Only.
Kuwahara S et al., “Synthesis of Levo Periplanone-B a Sex Phormone Component of the American Cockroach Periplaneta-Americana,” Tetrahedron, 1990, pp. 8075-8082, vol. 46, No. 24, ISSN: 0040-4020, p. 8078, figure 4.
T. K. Dhar et al., “Structure of phaseolinone, a novel phytotoxin from macrophomia phaseolina,” Tetrahedron Letters, 1982, pp. 5459-5462, vol. 23, No. 51, XP002197494, Elsevier Science Publishers, Amesterdam, NL, ISSN: 0040-4039, p. 5459, abstract 3; p. 5460, example 1, 7.
Erhart Bernd
Ring Sven
Schubert Gerd
Badio Barbara P.
Millen White Zelano & Branigan P.C.
Schering AG
LandOfFree
Method for the production of... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for the production of..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for the production of... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3750471