The present invention relates to a novel and easily scalable synthesis, process for the preparation of pure Isosulfan blue i.e., N-[4-[[4-(Diethyl amino) phenyl](2,5-disulfophenyl)methylene]-2,5-cyclohexadien-1-ylidene] -N-ethyl ethanamimium inner sodium salt via two process raw materials viz., 4-Chloro-3-formylbenz...

The present invention relates to a novel and easily scalable process for the preparation of pure Liothyronine Sodium, i.e., Sodium (S)-2-amino-3-[4-(4-hydroxy-3-iodophenoxy)-3,5-diiodophenyl]propanoate or (S)-2-Amino-3-[4-(4-hydroxy-3,5-diiodophenoxy)-3,5-diiodophenyl]propanoic acid sodium salt. The present inventio...

Tne present invention provides a process for the preparation of Levothyroxine Sodium (I), wherein, 3,5-diioso-L-tyrosine (II) or its hydrated form is reacted with CUS04 in presence of base and solvent to produce 3,5-diiodo-L-tyrosine copper complex (III), followed by condensation with bis (p-anisyl)iodonium iodid...

The present invention relates to a novel crystalline polymorph Form-AB of Liothyronine Sodium (I) and process of preparation thereof. Formula I

The present invention provides a process for the preparation of Triclabendazole (I), wherein, acetylation of compound (IX) in absence of solvent to obtain compound (IVa) followed by nitration in presence of high boiling solvents to obtain compound (Va), which is further condensed with 2,3-dichlorophenol (VII) to obt...

ONE POT PROCESS FOR THE PREPARATION OF OSELTAMIVIR PHOSPHATE The present invention provides one pot process for the preparation of Oseltamivir phosphate (I), wherein, (1S,5R,6S)-ethyl 5-(pentan-3-yloxy)-7-oxabicyclo [4.1.0] hept-3-ene-3-carboxylate of formula (X) is reacted with sodium azide and ammonium chloride...