Abstract: The present invention relates to a method of preparation of discrete particles of nanocrystalline solid dispersion, wherein said discrete particle comprises crystals of said active ingredient(s) in the matrix of the said crystallization inducer(s) and/or coexisting with crystals of crystallization inducer(s), optionally along with pharmaceutically acceptable excipient(s). An active ingredient and crystallization inducer is dissolved in a solvent or solvent mixture and then dried to obtain discrete particles of 0.5 to 20 micron size. Each particle consists of crystals of active ingredient in the range of 10-1000 nm dispersed in the matrix of crystallization inducer.

Abstract: The present invention is concerned with the development of novel 8-aminoquinoline analogs in the treatment and prevention of malaria and the said compound has broad spectrum of activity against the blood as well as tissue stages of the human malaria parasites makes these compounds very attractive in the cure and prevention of malaria caused by drug-sensitive and multidrug resistant strains and also it is expected that development of these compounds as ideal antimalarial agents may lead to suppression as well as radical cure of the malaria infection with single drug therapy.

Abstract: The present invention provides a simple single step process for the preparation of [2,8-bis(trifluoromethyl)-4-quinolinyl]-2-pyridinylmethanone, comprising the step of condensing a halo-quinoline with an alpha-picolyl derivatives in the presence of a solvent, a base and a phase transfer catalyst at −10° C. to +90° C.

Abstract: The present invention provides a simple single step process for the preparation of [2,8-bis (trifluoromethyl)-4-quinolinyl]-2 -pyridinylmethanone, comprising the step of condensing a halo-quinoline with an alpha-picolyl derivatives in the presence of a solvent, a base and a phase transfer catalyst at −10° C. to +90° C.