Process for the production of...

Details Process for the production of... Process for the production of...

2006-05-30

2006-05-30

Saeed, Kamal A. (Department: 1626)

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

Organic compounds

Cyclopentanohydrophenanthrene ring system containing

C549S424000, C564S254000, C564S255000

Reexamination Certificate

active

07053229

ABSTRACT:
This invention relates to a process for the production of 4-(17α-alkoxymethyl-17β-substituted-3-oxoestra-4,9-dien-11β-yl)benzaldehyde-(1E)-oxime derivatives of general formula (I)in which R means an amino group, an O—C1-7-alkyl- or O-aryl radical, an S—C1-7-alkyl- or S-aryl radical, an NH—C1-7-alkyl- or NH-aryl radical or an N-di-C1-7-alkyl radical, and R1means a hydrogen atom or a C1-6-alkyl radical, which yields the target compounds of formula (I) with high yield and selectivity.

REFERENCES:
patent: 61 263 (1968-12-01), None
patent: 16 18 340 (1971-03-01), None
patent: 0 648 779 (1995-04-01), None
A. Jumar et al., “Uber die Herstellung und Reaktionsfahigkeit von Chlorformyloximen”, Z. Chem., 8d. 7, Nr. 9, 1967, Seiten 344-345, XPOO1068343.

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