Patents Assigned to Sionogi & Co., Ltd.
  • PROCESSES AND INTERMEDIATES FOR CARBAMOYLPYRIDONE HIV INTEGRASE INHIBITORS
    Publication number: 20140005405
    Abstract: Processes are provided which create an aldehyde methylene, or hydrated or hemiacetal methylene attached to a heteroatom of a 6 membered ring without going through an olefinic group and without the necessity of using an osmium reagent. In particular, a compound of formula (I) can be produced from (II) and avoid the use of an allyl amine: (formulae I and II) where R, P1 P3, R3 and Rx are as described herein.
    Type: Application
    Filed: September 5, 2013
    Publication date: January 2, 2014
    Applicants: VIIV Healthcare Company, Sionogi & Co., Ltd.
    Inventors: Brian JOHNS, Maosheng DUAN, Toshikazu HAKOGI