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.
Patent No.:
Date of Patent:
Feb. 21, 2012
Filed:
Sep. 14, 2005
Melville Mitchell, Edinburgh, GB;
Neil Kenneth Thomson, West Lothian, GB;
George Scott Wilson, Edinburgh, GB;
Neil John Goodwin, Edinburgh, GB;
Maureen Joan Young, Edinburgh, GB;
Melville Mitchell, Edinburgh, GB;
Neil Kenneth Thomson, West Lothian, GB;
George Scott Wilson, Edinburgh, GB;
Neil John Goodwin, Edinburgh, GB;
Maureen Joan Young, Edinburgh, GB;
Johnson Matthey Public Limited Company, London, GB;
Abstract
A process for preparing a compound of formula (A), (B) or (C): wherein P is H, CHor a hydroxyl protecting group; X is O, a protected ketone, OH, a protected hydroxyl group or H; Y is OH, a protected hydroxyl group or H; W is C(CH)OH, (CH)(C(CH))OH or COCH; Z is C-Calkyl or C-Carylalkyl; andis a single bond or a double bond, is disclosed. The process includes reductive alkylation in the presence of hydrogen and a reductive alkylation catalyst.