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:
Oct. 18, 2011
Filed:
Jan. 08, 2009
Martin Quibell, Cambridge, GB;
James Nally, Cambridge, GB;
Lee Patient, Cambridge, GB;
Yikang Wang, Cambridge, GB;
Claudio Dagostin, Cambridge, GB;
John Paul Watts, Cambridge, GB;
Martin Quibell, Cambridge, GB;
James Nally, Cambridge, GB;
Lee Patient, Cambridge, GB;
Yikang Wang, Cambridge, GB;
Claudio Dagostin, Cambridge, GB;
John Paul Watts, Cambridge, GB;
Amura Therapeutics Limited, Cambridge, GB;
Abstract
The present invention relates to a process for preparing a compound of formula (Ia), (Ib), (Ic) or (Id), or a pharmaceutically acceptable salt, hydrate, solvate, complex or prodrug thereof, said process comprising the steps of: (A) (i) treating a compound of formula (IVa), where Ris alkyl or tosyl, with an oxidizing agent to form a compound of formula (Va); and (ii) converting said compound of formula (Va) to a compound of formula (Ia) or (Ic); or (B) (i) treating a compound of formula (IVb), where Ris alkyl or tosyl, with an oxidizing agent to form a compound of formula (Vb); and (ii) converting said compound of formula (Vb) to a compound of formula (Ib) or (Id).