1229006-25-0Relevant academic research and scientific papers
Intermediate of these pyridonecarboxylic carbamoylalkanoic and HIV integrase inhibitor
-
, (2016/10/07)
A synthesis approach providing an early ring attachment via a bromination to compound I-I yielding compound II-II: whereby a final product such as AA: can be synthesized. In particular, the 2,4-difluorophenyl-containing sidechain is attached before creation of the additional ring Q.
Identification and Control of Critical Process Impurities: An Improved Process for the Preparation of Dolutegravir Sodium
Sankareswaran, Srimurugan,Mannam, Madhavarao,Chakka, Veerababu,Mandapati, Srirami Reddy,Kumar, Pramod
, p. 1461 - 1468 (2016/08/30)
A four-stage manufacturing route for the preparation of dolutegravir sodium (1) was assessed and optimized leading to a higher yielding, simpler and scalable process. Key improvements in the process include the development of mild workup procedure by selective derivatization of a difficult to remove a process impurity using tert-butyldimethylsilyl chloride. Metal-based hydrogenation-free O-debenzylation is optimized, and the critical isomeric impurity formed was identified and eliminated from the process by the establishment of a proper control strategy.
PROCESS FOR THE PREPARATION OF INTERMEDIATE OF DOLUTEGRAVIR
-
, (2015/01/16)
The present invention provides a novel processes for preparation of methyl 3- (benzyloxy)-5-(2,4-difluorobenzylcarbamoyl)-4-oxo-l-(2-oxoethyl)-l,4-dihydropyiridine-2- carboxylate using novel intermediates.
PROCESS FOR PREPARING COMPOUND HAVING HIV INTEGRASE INHIBITORY ACTIVITY
-
, (2013/06/27)
A process for preparing a compound represented by formula (Y1) or (Y2) [wherein Rx is an optionally substituted carbocyclyl lower alkyl, or the like] or a salt thereof, using a novel process for preparing a pyridone derivative represented by formula (X4) [wherein R1d is hydrogen, halogen, or the like; R2d is hydrogen, a lower alkyl optionally substituted with substituent E, or the like; R4d is a lower alkyl optionally substituted with substituent E, or the like; and R6d is a lower alkyl group optionally substituted with substituent group E, or the like].
PROCESSES AND INTERMEDIATES FOR CARBAMOYLPYRIDONE HIV INTEGRASE INHIBITORS
-
Page/Page column 38, (2010/07/02)
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 comopound of formula (I) can be produced from (II) and avoid the use of an allyl amine: (formulae I and II) where R, P 1 P3, R3 and Rx are as described herein.
