| ALEMBIC LIMITED Patent applications |
| Patent application number | Title | Published |
|---|
| 20110306796 | PROCESS FOR THE PREPARATION OF 1-BROMO-3,5-DIMETHYL ADAMANTANE - The present invention relates to an improved process for the preparation of 1-bromo-3,5-dimethyl adamantane of formula (III), which is an useful intermediate for synthesis of 1-amino-3,5-dimethyl adamantane of formula (I) or pharmaceutically acceptable salt thereof. | 12-15-2011 |
| 20110230663 | PROCESS FOR THE PREPARATION OF DONEPEZIL HYDROCHLORIDE - The present invention relates to novel process for preparing Donepezil hydrochloride of formula (I) | 09-22-2011 |
| 20110230657 | PROCESS FOR PREPARING QUETIAPINE FUMARATE-TOLUENE-WATER - The present invention relates to an improved process for preparing Quetiapine fumarate of formula (I). | 09-22-2011 |
| 20110092727 | PROCESS FOR PREPARING TERIFLUNOMIDE - The present invention relates to a process for preparing Teriflunomide of formula (I). | 04-21-2011 |
| 20100310652 | COATED EXTENDED RELEASE PHARMACEUTICAL COMPOSITIONS OF LEVETIRACETAM - An extended release pharmaceutical composition comprising levetiracetam. A coated extended release pharmaceutical composition comprising levetiracetam wherein the core is coated with a rate controlling composition. | 12-09-2010 |
| 20100249433 | PROCESS FOR THE PURIFICATION OF ROPINIROLE HYDROCHLORIDE - An improved process is described for the purification of ropinirole hydrochloride. The process includes (i) dissolving ropinirole hydrochloride in water; (ii) treating the solution obtained in step (i) with sodium dithionate and charcoal; (iii) treating the filtrate obtained in step (ii) with water immiscible solvent and base and isolating the free base; and (iv) treating the free base obtained in step (iii) with ethanolic HCl to give ropinirole hydrochloride. | 09-30-2010 |
| 20100249430 | PROCESS FOR PREPARING VALSARTAN - The invention relates to novel compound of formula (IV), which is an organic acid salt of N-[(2′-cyanobipheny1-4-yl)methyl]-(L)-valine ester. This compound is an useful intermediate for process of preparation of Valsartan of formula (I), chemically known as (S)-N-(1-Carboxy-2-methylprop-1-yl)-N-pentanoyl-N-[2′-(1H-terazol-5-yl)biphenyl-4-ylmethyl]amine. This invention also relates to a process for preparing Valsartan using novel intermediate of formula (IV). | 09-30-2010 |
| 20100210852 | PROCESS FOR THE PREPARATION OF CANDESARTAN CILEXETIL - The present invention relates to an improved process for the preparation of tritylated candesartan acid of formula (I) | 08-19-2010 |
| 20100179332 | PROCESS FOR THE PURIFICATION OF ROPINIROLE HYDROCHLORIDE - The present invention provides an improved process for the purification of ropinirole hydrochloride. The process includes (i) treating ropinirole hydrochloride with sodium dithionate and charcoal in suitable alcoholic solvent; (ii) triturating the ropinirole hydrochloride obtained in step (i) with ethanol; (iii) reacting the triturated solid with base in water immiscible solvent and isolating the free base; and (iv) treating the free base obtained in step (iii) with ethanolic HCl to give ropinirole hydrochloride. | 07-15-2010 |
| 20100113798 | PROCESS FOR PREPARATION OF IRBESARTAN - A process for the preparation of Irbesartan of formula (I) using the step of, | 05-06-2010 |
| 20090312538 | PROCESS FOR THE PREPARATION OF SUCRALOSE OF HIGH PURITY - The present invention relates to an improved process for the preparation of Sucralose having purity of at least 99.6% comprising steps of
| 12-17-2009 |
| 20090220663 | Process and composition of preparing granular sucralose for emulating table sugar - A low-calorie solid, pourable composition for emulating sugar, the composition comprising an intense sweetener and at least one low-calorie bulking agent selected from maltodextrin, magnesium oxide, magnesium carbonate, calcium stearate, colloidal silicon dioxide and starch or combinations thereof, and a process for the preparation of said composition. | 09-03-2009 |
| 20090030052 | PHARMACEUTICAL TABLET COMPOSITIONS CONTAINING IRBESARTAN - A pharmaceutical tablet composition comprising irbesartan and lactose, said composition being essentially free of surfactant. | 01-29-2009 |
| 20080262244 | Process for the Preparation of Indolone Derivative - A process for the preparation of 4-[2-(Di-n-propylamino)ethyl]-2,3-dihydro-1H-indol-2-one of formula (I) and its pharmaceutically acceptable salts, solvates Formula I involving new intermediates of compound of formula (A) and (B) wherein R represents (i) a halogen atom selected from fluorine, chlorine atom, bromine atom and iodine atom; (ii) lower alkanesulfonyloxy group selected from methanesulfonyloxy, ethanesulfonyloxy, isopropanesulfonyloxy, propanesulfonyloxy, butanesulfonyloxy, tert-butanesulfonyloxy, pentanesulfonyloxy, hexanesulfonyloxy; (iii) substituted or unsubstantiated arylsulfonyloxy group selected from phenylsulfonyloxy, 4-methylphenylsulfonyloxy, 2-methylphenylsulfonyloxy, 4-nitrophenylsulfonyloxy, 4-methoxyphenylsulfonyloxy, 3-chlorophenylsulfonyloxy; (iv) arylalkylsulfonyloxy group selected from benzylsulfonyloxy, 2-phenylethylsulfonyloxy, 4-phenylbutylsulfonyloxy, 4- methylbenzylsulfonyloxy, 2-methylbenzylsulfonyloxy, 4-nitrobenzylsulfonyloxy, 4-methoxybenzylsulfonyloxy, 3-chlorobenzylsulfonyloxy. | 10-23-2008 |
