Abstract: The present invention relates to an amorphous form of valganciclovir hydrochloride and the pharmaceutical compositions thereof. The amorphous form can be directly prepared by spray-drying or azeotropic distillation of reaction mass. The amorphous form is useful in treating viral infections, for example, herpes simplex and cytomegalovirus.

Abstract: The invention relates to highly pure fexofenadine and a process for preparing highly pure fexofenadine. The invention also relates to pharmaceutical compositions that include the highly pure fexofenadine and use of said compositions for treating a patient for allergic reactions.

Abstract: The present invention relates to a new polymorphic form of 5-[4-[2-(5-ethyl-2-pyridyl)ethoxy]benzyl thiazolidine-2,4-dione of Formula I, commonly known as pioglitazone. It also relates to processes for the preparation of new polymorphic form of pioglitazone and pharmaceutical compositions that include the polymorphic form. It also relates to processes for the preparation of pioglitazone hydrochloride having high solubility and improved bioavailability. It also relates to pharmaceutical compositions that include the pioglitazone hydrochloride having high solubility and a method of treatment of Diabetes type II mellitus comprising administration of the pioglitazone hydrochloride having high solubility.

Abstract: The present invention relates to novel polymorphic Form I of pregabalin and processes for its preparation. Further provided is an enantiomerically pure pregabalin or salt thereof having less than about 0.03% w/w of the (R)-(?)-enantiomer.

Abstract: The present invention relates to a process for the preparation of cyclopropyl keto a,a-dimethylphenyl acetic acid of structural Formula I, and to the use of this compound as an intermediate for the preparation of an antihistamine, fexofenadine.

Abstract: The present invention relates to a process for the preparation of N2-Acetyl-9-(1,3-diace-toxy-2-propoxymethyl) guanine, referred to here as N-9 alkylated isomer of structural formula I, and to the use of this compound as an intermediate for the preparation of antiviral compound, ganciclovir.

Abstract: The present invention relates to an improved process for the preparation of N2-acetyl-9-(1,3-diacetoxy-2-propoxymethyl)guanine, referred to here as the N-9 alkylated isomer, useful as intermediate for the preparation of antiviral compound, ganciclovir, including addition of a monoacetyl guanine, and optionally, addition of N2-acetyl-9-(1,3-diacetoxy-2-propoxymethyl)guanine, referred to herein as the N-7 alkylated isomer.