Abstract: The present disclosure provides a process for the preparation a premix of raltegravir potassium form 3 with excipients. This premix may be used in the manufacture of pharmaceutical formulations containing raltegravir.

Abstract: The present disclosure provides a process for the preparation a premix of raltegravir potassium form 3 with excipients. This premix may be used in the manufacture of pharmaceutical formulations containing raltegravir.

Abstract: The present disclosure provides a process for the preparation of 2-(2-amino propan-2-yl)-N-(4-fluorobenzyl)-5-hydroxy-1-methyl-6-oxo-1,6-dihydro-pyrimidine-4-carboxamide by debenzylation of benzyl(2-{4-[(4-fluorobenzyl)carbamoyl]-5-hydroxy-1-methyl-6-oxo-1,6-dihydropyrimidin-2-yl}propan-2-yl)carbamate. This process may be used in the synthesis of raltegravir and pharmaceutically acceptable salts thereof.

Abstract: A process for the preparation of canagliflozin. The process may be effectively implemented on an industrial scale. Several compounds useful as intermediates for the synthesis of canagliflozin (Formula 4, Formula 4a, Formula 4b and Formula 5) are also disclosed. The process involves the reduction of the compound of formula 3 in the presence of a metal hydride and an organic solvent to obtain the compound of formula 4, converting this into a compound of formula 5 which in turn is converted into canagliflozin.

Abstract: The present invention relates to an improved process for the preparation of Tenofovir Disoproxil and its pharmaceutically acceptable salts comprising the steps of: a) esterifying Tenofovir with chloromethyl isopropyl carbonate in presence of a base, phase transfer catalyst and optionally dehydrating agent, in a suitable solvent; b) optionally purifying Tenofovir Disoproxil; and c) converting of Tenofovir Disoproxil into its pharmaceutically acceptable salts. The present invention further relates to a process for the preparation of Tenofovir by reacting 1-(6-amino-purin-9-yl)-propan-2-ol with toluene-4-sulfonic acid diethoxy phosphoryl methyl ester in presence of a base in a non-polar solvent medium followed by hydrolysis.

Abstract: The present invention relates to an improved process for the preparation of Tenofovir Disoproxil and its pharmaceutically acceptable salts comprising the steps of: a) esterifying Tenofovir with chloromethyl isopropyl carbonate in presence of a base, phase transfer catalyst and optionally dehydrating agent, in a suitable solvent; b) optionally purifying Tenofovir Disoproxil; and c) converting of Tenofovir Disoproxil into its pharmaceutically acceptable salts. The present invention further relates to a process for the preparation of Tenofovir by reacting 1-(6-amino-purin-9-yl)-propan-2-ol with toluene-4-sulfonic acid diethoxy phosphoryl methyl ester in presence of a base in a non-polar solvent medium followed by hydrolysis.

Abstract: The present invention relates to novel Tenofovir disoproxil hemifumarate salt, which is prepared by dealkylation of Phosphonate esters by using mineral acids followed by esterification and crystallization to give crystalline Tenofovir disoproxil. The Tenofovir disoproxil is further converted to fumarate salts with improved yield.

Abstract: The present invention relates to novel Tenofovir disoproxil hemifumarate salt, which is prepared by dealkylation of Phosphonate esters by using mineral acids followed by esterification and crystallization to give crystalline Tenofovir disoproxil. The Tenofovir disoproxil is further converted to fumarate salts with improved yield.