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:
Jul. 03, 2007
Filed:
Apr. 07, 2005
Parveen Bhatarah, Stevenage, Herts, GB;
Derek Mchattie, Stevenage, Herts, GB;
Alan Greenwood, Stevenage, Herts, GB;
Paul Christopher Marcus Hedger, Stevenage, Herts, GB;
Parveen Bhatarah, Stevenage, Herts, GB;
Derek McHattie, Stevenage, Herts, GB;
Alan Greenwood, Stevenage, Herts, GB;
Paul Christopher Marcus Hedger, Stevenage, Herts, GB;
Other;
Abstract
A method of preparing cabergoline Form I, comprising forming a solvate including cabergoline and 4-fluorotoluene or 1,3,5-trimethylbenzene and obtaining cabergoline Form I from the solvate. Another aspect of the present invention provides a method for preparing cabergoline Form I comprising dissolving cabergoline in 4-fluorotoluene or 1,3,5-trimethylbenzene and recovering the cabergoline Form 1 polymorph. Cabergoline Form I can then be obtained from the solution, suitably by direct crystallization of Form I or by recovery of a solvate which can be converted to Form I.