1172131-64-4Relevant articles and documents
PROCESSES FOR PREPARING RALTEGRAVIR AND INTERMEDIATES IN THE PROCESSES
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, (2012/08/08)
The present invention provides a process for preparing benzyl-2-(4-(4- fluorobenzylcarbamoyl)-5-hydroxy-1-methyl-6-oxo-1,6-dihydropyrimidin-2-yl)propan-2- ylcarbamate (RLT-8), a process for preparing Raltegravir via RLT-8, a process for preparing methyl 2-(2-(benzyloxycarbonylamino)propan-2-yl)-5 -hydroxy-1-methyl-6- oxo-1,6-dihydropyrimidine-4-carboxylate (RLT-7'), a process for preparing Raltegravir via RLT-7', and a process for preparing crystalline form V of Raltegravir potassium.
Development of a second-generation, highly efficient manufacturing route for the HIV integrase inhibitor raltegravir potassium
Humphrey, Guy R.,Pye, Philip J.,Zhong, Yong-Li,Angelaud, Remy,Belyk, Kevin M.,Maligres, Peter E.,Miller, Ross A.,Reamer, Robert A.,Askin, David,Mancheno, Danny E.,Weissman, Steven A.
, p. 73 - 83 (2011/09/16)
A manufacturing route for the synthesis of raltegravir potassium 1 was developed via a thermal rearrangement of amidoxime DMAD adducts 6 to construct the key, highly functionalized hydroxypyrimidinone core 7. Utilizing this route 1 was prepared in nine linear chemical steps with 22% overall yield. A second-generation synthesis was subsequently developed that solved the key chemical, productivity, and environmental impact issues of the initial synthesis. Highlights of the new synthesis include a highly selective methylation, 3-4-fold higher productivity, and a 65% reduction of combined organic and aqueous waste produced. The efficient second-generation manufacturing route provides raltegravir potassium 1 in 35% overall yield.