The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jul. 31, 2018

Filed:

Mar. 11, 2016
Applicant:

Siegfried Ag, Zofingen, CH;

Inventors:

Stefan Sahli, Zofingen, CH;

Beat Theodor Weber, Zofingen, CH;

Assignee:

SIEGFRIED AG, Zofingen, CH;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 489/12 (2006.01);
U.S. Cl.
CPC ...
C07D 489/12 (2013.01);
Abstract

The present invention relates to a method of preparing a compound of Formula II-a' or Formula II-b′, wherein Rrepresents hydrogen or a linear, branched and/or cyclic alkyl or alkenyl group having 1 to 10 carbon atoms; Rrepresents a linear, branched and/or cyclic alkyl or alkenyl group having 1 to 10 carbon atoms; Rrepresents hydrogen or a linear, branched and/or cyclic alkyl or alkenyl group having 1 to 10 carbon atoms or a linear, branched and/or cyclic alkoxy group having 1 to 10 carbon atoms; Rrepresents hydrogen or a linear, branched and/or cyclic alkyl group having 1 to 10 carbon atoms or an optionally substituted aryl or alkylaryl group having 6 to 40 carbon atom or acetyl or silyl or a protective group; and Rrepresents hydrogen or a methyl group; wherein Rand Rare different from each other.


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