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PROCESS FOR THE PREPARATION OF INTERMEDIATE OF DOLUTEGRAVIR

  • US 20180148412A1
  • Filed: 01/29/2018
  • Published: 05/31/2018
  • Est. Priority Date: 07/04/2013
  • Status: Active Grant
First Claim
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1. Intermediate compounds of 3-(benzyloxy)-2-(dimethoxymethyl)-4H-pyran-4-one of formula III, 3-(benzyloxy)-2-(dimethoxymethyl)pyridin-4(1H)-one of formula IV, 3-(benzyloxy)-5-bromo-2-(dimethoxymethyl)pyridin-4(1H)-one of formula V, 5-(benzyloxy)-6-(dimethoxymethyl)-4-oxo-1,4-dihydropyridine-3-carbaldehyde of formula VI, 5-(benzyloxy)-6-(dimethoxymethyl)-4-oxo-1,4-dihydropyridine-3-carboxylic acid of formula VII, 5-(benzyloxy)-N-(2,4-difluorobenzyl)-6-(dimethoxymethyl)-4-oxo-1,4-dihydropyridine-3-carboxamide of formula VIII, 1-allyl-5-(benzyloxy)-6-(dimethoxymethyl)-4-oxo-1,4-dihydropyridine-3-carbaldehyde of formula IX, 1-allyl-5-(benzyloxy)-6-(dimethoxymethyl)-4-oxo-1,4-dihydropyridine-3-carboxylic acid of formula X, 1-allyl-5-(benzyloxy)-N-(2,4-difluorobenzyl)-6-(dimethoxymethyl)-4-oxo-1,4-dihydropyridine-3-carboxamide of formula XI, 1-ally 1-5-(benzyloxy)-N-(2,4-difluorobenzyl)-6-formyl-4-oxo-1,4-dihydropyridine-3-carboxamide of formula XII, 1-allyl-3-(benzyloxy)-5-(2,4-difluorobenzylcarbamoyl)-4-oxo-1,4-dihydropyridine-2-carboxylic acid of formula XIII.

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